PornMD

There's a lot of factors involved.

- Generic vs. Brandable...if generic, usually a domain would need at least SOME searches per month on the search engines for them to be desirable, but ones with that are desirable given the potential traffic from search on the term itself and anything containing it. Brandable domains don't, but beauty of them is then definitely in the eye of the beholder, and quality brandables end up being harder to sell than quality generics.
- Extension...kind of goes without saying - some people won't even consider anything other than .com, some will look at higher quality names in weaker gTLDs or in strong ccTLDs, and some will look at single-word power words in obscure ccTLDs.
- Size/profitability of niche the domain involved...the more potential buyers for a name, the more likelihood it will sell compared to an equivalent quality domain in a smaller or lesser profitable niche with fewer players.
- Demand, which is low right now in adult given tubes are making it harder to make money in adult
- Supply, which is high right now in adult as a lot of adult names have dropped and a lot of webmasters are selling domains/sites they may not have otherwise due to needing money
- Price...a lot of domains don't sell because they're simply not priced very well, which includes domains priced at $20 - $50 that simply weren't worth the reg money to begin with
- Expertise/experience of seller, including how to entice people to buy, conveyance of value of the domains, when/where the names are posted, negotiation skills, reputation, trust/feedback on places that have it, etc.

There's probably more but these are off the top of my head.

Exactly. I'm more impressed with anyone who has gotten in within the past 5 years making a living doing it. (I myself got in about 6 years ago)

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