I'm thinking about following the advice of numerous people posting on this board and purchasing a subsidized AT&T phone online at the Apple Store with in-store pick up, and then informing them that I actually want to pay full price for the phone when I arrive at the store. Can I do that if I'm currently an AT&T or GoPhone customer? When I initiate the process it asks me if I want to replace a phone on my account or add a new line. If I choose one of the options and lock myself into a 2-year contract, will I still be able to "change my mind" and have the in-store Apple employee sell it to me full price? Will they be able to negate the 2-year contract?