I currently have an iPhone 4S on Verizon with Unlimited Data and I'm looking to upgrade to a 5S (assuming it's released) later this year. Most importantly, I'd like to kee my unlimited data. Ideally, I'd like to be able to upgrade my phone once every year. To keep my unlimited currently, I'd have to buy an iPhone at full retail price ($700 for 32GB iPhone). I'd prefer not to drop $700 at once. So i was wondering, which is a better deal for someone who wants to keep unlimited data AND upgrade to a new phone every year? VZ Edge or the current Device Payment Plan plan? Thanks!