I've got a 4S... and I'll probably eventually get a 5S (at some point... not gonna stand in line or anything...) On my 4S, the glass is fine, not broken or anything... It does have an annoying "bright" patch on the screen... Not a big deal or anything, but got me thinking about applecare+. My applecare+ expires in a month. Does it make any sense at all to get a replacement 4S at this point? Does the screen need to be cracked, or the phone need to be non-functioning to warrant a replacement? Do phones "slow down" over time? Like, would I notice any performance improvement with a "new" (or refurb or whatever) 4S over my old one, which has been in service almost two years? I spent $100 for Applecare, but haven't used it. So I guess the question is: Is spending $50 more now (for the replacement) good insurance that this phone will stay in service for longer? I'd assume the fact that it's a "new" 4S would make it more attractive and worth more if I try to sell it, and perhaps I'd recoup the cost of the Applecare+ replacement, so it's a zero-sum game... Not trying to run a scam here, people. Just curious about what the best options are.