I see a lot of people estimating how much they'll be able to resell their phone after 12 months, basing the estimated prices off of used iPhone sales from prior years. But it now seems that upgrade plans, whether through Apple or telecoms, are becoming a new norm. So won't that have a significant effect on resale prices? Or will there remain enough demand for later generation used iPhones that it won't matte? I'm guessing resale prices drop significantly.