Hello, all! I am getting the new iPhone 5s when it comes out on the 20th. I am not under an AT&T contract, and am eligible for AT&T Next or a 2 year contract. See, I get the new iPhone every year, and here my choices: either performing an AT&T Early Upgrade every year for $449 (I would sell the older iPhone to offset the cost) or do the AT&T Next program which is basically paying $27 a month and then at the end of the year I trade the phone in and pay $27 a month again for the new iPhone. What is the better plan? Thanks.