I've had an iPhone 6 for several years. It's been a great phone with no issues and has every feature I need.
Wasn't even thinking about upgrading. But damn Sprint, they have a 50% off upgrade special and it was just too tempting. So now I have an 8 Plus on order for $22 per month on the lease deal, which is less than I pay for the 6.
I think I'm hooked for life.