I, too, have felt like I was getting ripped off when selling at Buffalo Exchange and also Red Light. In my experience, people on Craigslist are cheap and flaky. You'll get a ton of emails/phone calls/whatever, but very little follow through. I think you'd probably get the most money on Ebay, but then you also have to pay to post a listing (but it's not very much $) and you have to deal with shipping.
That said, what size are you? I like pretty shoes.