Like everyone is saying it depends. I sold my iPhone 5s 32 GB AT&T a month a go for $600 due to the anticipation for the 6, and decided to use my iPhone 4s , yeah , no, it was a horrible mistake. So slow and unresponsive , ah ! Since I'm a Craigslist junkie I looked everyday to find an iPhone 5s and actually made a deal with someone for $340 for a iPhone 5s 32 GB perfect condition. The deal sounded too good to be true so ,I of course, decided to meet at an AT&T store , and made the transaction there . And walked away with a semi new iphone . Long story short , the sensor wasn't recognizing my finger at all, (what a surprised right ) so I took it to the apple store , and they replaced it with a brand new phone. New imei is a plus ,so I could have some peace not getting screw over like people do on craigslist. So yeah , that's my experience buying an iPhone 5s. I wonder how much I could sell it after the 6 comes out ? ? $450 perhaps ?