I started using Craigslist when I was in Burlington but had limited success in buying/selling as the community was pretty small. You had a lot of college students using it so the apartment and furniture threads were pretty active but that was about it.
When I moved to Atlanta I quickly realized that the size of the Craigslist community here is HUGE. I have had great success in selling stuff on the Atlanta Craiglsist board and have actually found myself using it a lot more that Ebay. There is something to be said for how simple they keep things. It is easy to post, does not cost anything, no shipping to deal with, and people pay you in cash! Compare that with the hassles of Ebay and you can quickly see why Craigslist has taken off. I still use Ebay for niche items that don’t have mass market appeal but for most items it’s Craiglist!