Do you guys have any tips for buying and keeping up the latest devices? I see a lot of you that always are getting the latest devices whether it's the latest iPhone, Galaxy, HTC One, Nexus, etc. I'd love to buy a new phone each year or have multiple phones that I could change to whenever I wanted but I feel bad paying $600-$700 per phone since I buy them for full price. Any tips, feedback, suggestions, etc. is much appreciated!