I should have stayed with my 7 Plus, but the little bit of speed gain and the wireless charging... and I broke down and bought the 8 Plus. (should have stopped myself, or went with the X)
I kinda knew i'd buy a new iPhone this year.. Was just hoping for a huge improvement. As soon as I saw the XS Max and the XR I was just trying to decide which one. The XS was 100% out from the start.. They gave me a bigger screen option, sold. I've played with the X next to my 7/8 Plus before and while it would be an increase in phone capabilities.. the screen size being smaller was a huge turn off. Type on my 7/8 Plus keyboard, and then the same on the X's.. it felt like going back to a 6S or 7/8 non Plus model.
Now i'm pretty sure i'll keep this iPhone for 2-3 years.
(now watch, Apple will release the 7" screen XS Max Plus next year that is 300% faster and with normal usage last 7 days without a charge...)
I really like the wireless charging of the 8 plus. No reason to upgrade in my opinion.