As most know Apple likes to incrementally upgrade their products yearly. Word on the street has it that the technology will be where Apple wants it for the the on-screen Touch ID to be featured in the 2018 all screen OLED iPhone. They don't care to be the first, but they sure want it perfected. If this is the case, for those getting an X, will you buy now and upgrade again next year, or wait until next years OLED iPhone? If you are on an iPhone 6S or lower, I think the X will be a huge upgrade. If you have a 7/7+ (myself a 7+) then it might only be somewhat of an upgrade. I will probably wait since I upgrade every two years (non S models) since the 4, even though this years phones are non S models, the 8 and X, I still think the 8/8+ feel more like 7S/+ models. Having both FaceID and TouchID in a single phone would be welcomed.