u wont you will purchase any other phione at regular price (or you can do craigslist/ebay)
this is the case unless ure able to early upgrade/ upgrade
if not then ure sol in getting a new iphone. get ready to drop full price.
as for the data, u only have to pay 30 for iphones, blakcberries, and other smart phones that fully use data. all other phones if you want internet will be 10 dollars.
atnt is one a$$hole company when it comes to things like this.