I've got it on here, eBay and Craigslist. It's an essentially brand new iPhone 6 64 GB Space Grey AT&T. It's been up for almost a week and no activity. I've got it listed for $700 which is a pretty good deal. Are there any better places to sell it?
I sold my iPhone 5 (after using it for 10 months) on Craigslist for $350 with the Otterbox case. And I agree that you have to put up with some frustrations. I didn't experience scams but a few people who wasted my time with a lot of questions and then said, "I can only pay $50 but I can give you my old moped in trade."
Craigslist is worthwhile, but be very clear in what you're asking and definitely say "no trades."