I've held onto my iPhone 4S since October 2011, waiting till Apple came out with a larger iPhone screen. The 4-inch 5 and 5s didn't tempt me, merely lengthening the 4S. When the 6 was released, I thought that was the size the 5 should have been. So I decided to wait till the 6s "perfected" the 6. Still, a 64GB 6s is $750, while a 16GB Moto X Pure plus a 64GB microSD card is about $425. $325 difference is not nothing, and while the Pure is not the smartphone the 6s is, it's a very good phone. Okay, so if I go with the Pure, I lose the almost complete continuity that I enjoy with my iPad Air and rMBP, I lose the better 6s camera, and I have to learn a new OS. The ability to tweak Android does nothing for me. I am content with iOS. Those are things I have to weigh for that $325 difference. But will I really save money with the Pure in the long run? I would probably keep the 6s for four years. Would I be content with the 2015 Moto X Pure for that long? Any thoughts?