A few thoughts about Bitcoins360.com:
1. There hasn't been a recorded Bitcoin sale on namebio since 7-25, and only three in July, total.
2. Initially when I saw the domain, I immediately considered if the 360 or 365 suffix is better. Both work for a news site and have similar meanings, "expect us to cover the entire topic" and both seem to get 10-15 sales a year, so there is probably no advantage to either.
3. There are very few sales with the "s" at the end of Bitcoin. From my understanding (and the way I use it), Bitcoin is both singular and plural. "That Playstation costs 2 Bitcoin". "I'm going to need 5 Bitcoin for this transaction." You don't say BitcoinS. I could be wrong, but this is the way I use it.
4. Even though I'm still buying, I don't have a single Bitcoin domain sale under my belt, yet. Just something that I noticed in the past week or two when going over my domains.
So with all of that being said - if you find someone that wants the S at the end, and that likes the 360 at the end, I think you can get $20-$100. But it seems like demand is waaaaayyyyy down right now.