I live in the Atlanta area and I am switching to ATT from Sprint. I have a 64GB Sprint iPhone 5 (with Applecare +) and I am comfortable with the 5. I just recently moved over to my own plan from a family plan. I am not under contract but I cannot use my employee discount with signing a new 2 year contract with Sprint (B.S.). I have decided to switch to the ATT Go Phone Prepaid plan. My dilemma is whether to buy the unlocked Tmobile/ATT iPhone 5S or the Verizon iPhone 5S. The reason I am considering the Verizon iPhone 5s is because it would be unlocked to work at all three carriers as opposed to the Tmobile/ATT version would only work on those two carriers in the US. Any suggestions? How much should I expect to get for my iPhone 5 which is in perfect mint condition? Thanks.