I was wondering the same thing. I've had Next for a couple years now and in the past I've just fully paid off the phone and then sold it. The difference between the Pay to Upgrade vs Trade In is significant enough to me to where I'd prefer to Pay to Upgrade and not worry about the hassle of finding a buyer. I do not want to order the iP7 through AT&T though as they will only ship the phone to my billing / service address. No one will be home during the day on the 16th. From what I understand, if I order from Apple, they will ship it to whatever address I provide, which would be my work address. I called Apple and wasn't 100% confident the person I was speaking to knew what they were talking about.
Does anyone have any experience with Pay to Upgrade then ordering from Apple? Can you also confirm the ability to select any shipping address?
Thanks!
Chris