Great information! I’m actually looking to transfer one of my websites to other domain and I wasn’t so sure which should I choose it to make the best choice. I had no idea until now that you can use an expired domain. But what are the costs of such domains? But the expired domain aren’t very expensive? Due to the fact that they belonged to websites with great daily traffic? What is the price range of an expired domain?

I'm running the new Mac edition of Domain Ronin and I have to tell you it's extremely stable. I'm getting about 250k pages every 5 minutes which equates to about 2700 checked domains. At the moment it's only using about 1 gig of memory for 100 threads. I've got the page count and other settings to the max. The builtin features like TF and spam checking on the fly are wicked helpful.

It will just go on and on and on endlessly, so that really is like a set and forget setting. Okay, now before I show you it in action, I'll just skim over some of these stats stuff. Here this is pretty self-explanatory really so that's the amount pages crawled so far, that's how many pages were crawling per minute, so once it's been running for a minute that that'll date and they'll update every minute after that. That is if the websites are blocking are crawl. Thatw how many websites currently are been crawled, so how many websites have been crawled. That's if we have it have it had any registrar errors, so we fired off some domains to see if they're available or not and there's been any errors in checking them it displays there.
Premium Domain names are domains that are already registered, but are available for sale at a higher price. Sometimes it will be an individual selling the domain, or it could be the domain registry (Like Donuts Inc. or Radix) selling their top quality inventory at a higher price point. These domains can be priced anywhere from a couple extra bucks to millions, depending on the domain name, the level of interest, or the amount of traffic it organically receives.
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!

The way this list is implemented means I can't update prices, nor removed sold domains automatically and sedo doesn't provide me with the tools I need to implement it properly. Unfortunately some users keep contacting me to update their domain prices or remove their domains and I can't keep doing that manually. So I've decided to disable the list for now.