Everyone with a 6 or 6S is waiting for them to break, fail, be lost or stolen or them to be paid in full on the contract before getting a new one, just my opinion.
I'm going another year with my 6+........then I gift it to my sister. I'll then get a 7 ........not that I need one but I can't think of anything I'd spend an equal amount on that would provide more usefulness....and I deserve the BEST.....I just love this phone.......Verizon.....not so much