Hey, I got a brand new iphone 6s from att, 128gb. I do not need it and want to sell it, and I was hoping for suggestions on how to get a fair price without endless haggling (craiglist is paintful). How much should it go for? It seems they are selling on ebay for around $800, yet people on craigslist are asking for $650. What is the simplest way to sell this thing? Thanks! r.