so found out i can upgrade my "dumb" phone if needed. i was planning on just waiting until the summer for iphone 5. but then i heard about the buy back program at best buy.. it says: can someone please explain this to me? because what i'm getting out of this and the buy back program is that i can upgrade my dumb phone to the iphone 4 this weekend for $200 (verizon 16 gb) and in 6 months or less when the iphone 5 comes out, i can take it to best buy (having purchased the buy back program for it), get $240 in best buy credit for the iphone 4, then upgrade to the iphone 5 for $200? or does it mean i'd have to pay the $600 retail price and get no sale price like normal for the iphone 5 when it's out? or what's the deal? i'm so confused... please help.