If you buy a domain from a 3rd party, the backlinks are valuable.  I always wait a few months before redirecting, so just set up a quick minisite until two page rank updates have passed and then go ahead and 301 redirect.  However, it seems that you'll get the link juice from the back links, the anchor text is ignored by Google.   Buying a domain at Godaddy TDName expired auctions, seem to not count as a dropped domain if you immediately set up a mini-site.
While getting a new domain name will give your site a clean slate and allow you to start a fresh marketing campaign, you may not be aware of the fact that some expired domains come with a high Page Rank value. A company that buys such a domain will not have to work so hard on website promotion and backlink building techniques. Thanks for updating this really informative post!

This wonderful piece of information about buying expired domains is simply mind-blowing and I did not know about that before. It is easy for every one to understand about the topic with the pictorial representation. I feel sad that you lost around $400 due to Fake PR, but this article will surely help others save them from any sort of inconvenience.

Since high quality expired domains are in low supply, the huge numbers of marketers competing for those drop domains tend to drive prices up. Also, if you use an exchange, you’re basically lucky to get whatever you can afford. In other words, niche specificity isn't guaranteed. This is going to be a problem because as Google continues to evolve, it is cracking down on domain niche relevance. In other words, its software is fast evolving to the point that it can tell what the niche of a particular domain is. If your private blog network is a patchwork of expired domains that involve many different and dissimilar niches, then you might be in trouble. You are at great risk of being penalized by Google.
Most popular auctions with expiring domains are at godaddy, namejet, snapnames. Search for expired domains name its very easy if you have domains list. With a bit luck, you can drop good one with PR5 cheaper like $200, just need to know which domain have not fake pr. List of domains are not free, but updated dailly with aprox. 50.000 new expiring domain names.
Also note the Expired Domain Plugin is a lifetime “per user” license, so if you have multiple ScrapeBox licenses registered to the one email address purchasing the Expired Domain once will activate the plugin for all your ScrapeBox licenses with the same email for life. The plugin is a one-time payment and is not a monthly or yearly subscription, all updates are free.

Trust flow refers to the number of quality backlinks that a website has. If backlinks from websites that have a high domain and authority ranking point to your site; your website’s trust flow will increase. Trust flow is also measured on a scale of 1 to 100. If your website has a large number of backlinks, but they are not from trustworthy and reliable domains, your websites trust flow will be low. On the other hand, if you even have just a handful of backlinks to sites that search engines rank highly; your trust flow will increase.

Expired domains with page rank, Alexa, TF, CF, Backlinks, DA, PA, RD, etc. are of much importance. It is because search engine values those expired domains because of their pre-built matrices. It can take you months to build that trust and then it will be of the value that you want. So, what if you can find expired domains with authority links like expired domains with CNN links, expired domains with Wikipedia links, expired domains with Huffington post links, etc. This kind of expired domains will provide you some great juice for your money website.
Now the numbers of errors, for we give up crawling a web site in case you know, they've got some kind of anti scraping technology or the web sites just completely knackered or something thirty is generally fine. Limit number of pages crawled per website most the time you want that ticked. I have it about a hundred thousand less you are going to be crawling some particularly big websites. I like that there, because, if you have an endless, crawl and there's some kind of weird URL structure on a website like an old-school date picker or something you don't want to be endlessly stuck on that website. Show your URLs being crawled. Now, if you just want to see what it's doing, you can have it on for debugging sometimes, but I generally leave it off because it makes it slightly faster and writes results into a text file so as it goes along and it finds expired domains as well as showing you and the GUI here, you can write them into a text file just in case there's a crash or your PC shuts down or something like that.
Here's an old post on search engine roundtable that claims google's policy is to discount previous backlink juice when a domain changes ownership.  I'm not convinced whether this is actually true or something Google says to discourage excessive domain buying / 301 redirecting for SEO benefit.  The comments above seem to give varying opinions on this matter. Would be great to get to the bottom of that one!
Finding good aged high DA domains with natural links for SEO and filtering them through our expired domain tools is really easy. Contact us with your SEO or PBN needs to receive an offer. If you need domains for a private blog network, 301 redirects or other SEO strategies, then contact us!. Our pool is huge but so many domains are being bought that it’s diminishing at a fast rate.
When searching from keyword DHG will take your list of keywords and search each one, the pages will then be crawled to find unique domains to check availability of. The process is relatively simple but very time consuming when done manually or semi automated as was necessary in the past. Luckily now the job can be set and left to work while you do something else.

[1] On April 11, 2016, SnapNames (owned by Web.com) and NameJet (partnership between Web.com and Rightside) combined resources on pending delete/dropping domains to better compete with other drop catching services. Going forward, backorders placed on either platform for pending delete names will go into a common backorder pool and will be fulfilled either by NameJet or SnapNames depending on which platform the backorder was placed. Pending delete names that have multiple backorders will be placed in a common private auction accessible to bidders from both platforms to participate in the live auction. Minimum bid increments and proxy bidding rules for NameJet will be modified to match those of SnapNames. Registrar expiry, and direct lister inventory will not be affected by this integration.
"Expired Domains" will help you grab and search through all those domains that are expiring in a organized matter. You will be amazed how many good domains are expiring every day. With Expired Domains you should be able to find a domain you are looking for. It may take some time, and you should not expect to grab something like credit.com. Sometimes you will also need to use a backorder service to assure (as much as possible) that someone who aimed at the same domain as you doesn't grab it before you does.

The better quality links (From Google, Wikipedia) that a website has the higher will be its domain authority. New websites start with a ranking of one, and as the number of links increase the domain authority rises. For example, a sports website that has links to sports newspapers and sports reporting sites will have a higher domain authority than a sports website that only has links to other sports and sports blogging sites.

GoDaddy Auctions is a marketplace where GoDaddy lists domains that have expired and are in the renewal grace period. Apart from these GoDaddy also lists other domains, but the expiring auctions at GoDaddy are the most popular. Based on the percieved value of the domain, domainers and SEOs bid on these auctions. If the original owner does not renew the domain, the top bid wins the auction and gets the domain name.