Ok, so I am eligible for an early upgrade 399/499 pricing with a 2 year contract renewal. From the looks of the market value, I could make over a hundred dollars by selling my 16GB and buying a new one. I want a 32GB really badly (didn't realize i would when I bought my 16GB), and I could make money off that deal too. Is there any reason that I shouldn't do this? Would it add two years to my contract, or just reset to two years (I'm fine with the latter)? I've had it since July 15th, so I just started my 4th month today. It doesn't sound like a bad deal for a new phone and a few bucks...will I run into any problems?