With my recent switch from AT&T to T-Mobile, I have been able to unlock a couple of our iPhones and buy a couple of extra unlocked iPhone 5 units (all very clean and still with warranty) off CraigsList for good prices. I am considering "downgrading" from my iPhone 5s to one of the iPhone 5 units for the next X months until the iPhone 6 comes out (whichever flavor, I plan on buying one). Since I'm on T-Mobile, the iPhone 6 will likely cost me in the $700 ballpark (depending on the flavor and capacity I get). From scanning CL and ebay, it looks like I can get a net of around $550-$600 for my current iPhone 5s 32gb (which is permanently unlocked). I just bought an unlocked 32gb iPhone 5 for $280 which is mint and still under warranty for a few months. Bottom line, should I "downgrade" from the 5s to the 5 and have an extra ~$300 in my pocket for when I plan to upgrade to the iPhone 6? I don't play games on he iPhone and rendering an iMovie is extremely rare so aside from dropping from the A7 to A6, the slightly better camera and flash, and fingerprint scanner, is there anything else that I'd be sacrificing for the ~$300? Thanks!