I am very ambivalent about my Droid Razr. It's OK as a phone and a browser but I miss other aspects of having an iPhone and would like a 4S. Is there any way to get back to having an iPhone without having to just buy one at full price? What about buying a used or refurbished one? Is this a realistic option? Has anyone done this? The cost of buying a full price phone is eye watering so that's not going to happen. Ideas?