I don't know, ours is OK. Lots of magna/huffy junk and BMX but plenty of reasonably priced stuff too. If you want a nice bike at a decent price they're out there. I donb't see much high end stuff and when I do they ask generally what it's worth. You can generally pick up a decent Mt or road bike for $200 or less. If you want to make some money, not many smoking deals and the market is low priced so you can't stick much into them. There's a couple of regular flippers who sell anything from Huffys to Treks.
Every deal I've ever picked up has been at yard sales and every CL stuff I've sold (mostly frames from donors) has been at or near my asking price.
http://milwaukee.craigslist.org/bik/2729725316.html
http://milwaukee.craigslist.org/bik/2716303150.html
http://milwaukee.craigslist.org/bik/2713828405.html