So if I upgrade every 2 years and I am still grandfathered in under Unlimited Data, I should stick with 2 year contracts?
That's what I'm going to do. I'm keeping Unlimited data so my plan price would stay the same either way. I'll save $450.00 off of the phone. Of course they make up for it in my data/usage plan. If I went with NEXT and kept Unlimited, I'd be paying the same price for data/usage plus paying full price for the phone over "x" number of months. So I'd get dinged twice.