I can't agree with this comment enough-- on every other site you feel like they just want as much of your money as possible. Craigslist feels like your favorite uncle made you a website, and it may be a bit simple, but you can feel the TLC invested in it.

Craig clearly and explicitly treats Craigslist like a nonprofit, so he's leaving a lot of value "on the table" that he isn't extracting. I'd say this value goes to Craigslist users. If you use both eBay and Craigslist a lot, and I do, you can feel the difference pretty strongly...