I have to wade through a lot of shit on CL before I find a deal that's worth the effort of meeting someone. The people with ebay prices are annoying. If I'm going to pay ebay prices, I prefer to not have to deal with other humans face to face. If I have to go meet some stranger and do all the leg work of arranging our meeting then I at least need a little deal!
Overall, I've done ok, but I usually find good deals instead of great ones. I think garage sales are the place to really hit gold for super deals. I went to my first one this past weekend and was happy with what I spend and what I got.