Same here. I was an every year guy for the 4/5/6... phone tech has caught up and every year upgrades just don't make a lot of sense anymore. 2 year upgrades are even questionable.
Gonna roll with the 8 Plus for a 3rd year. No reason not to. It still takes great FB photos... if I want something better I'll use my standalone camera for pics and 4K 60 fps video. (My drone also has that video capability.)
1 more payment left on both my 8 Plus and my 2nd gen iPad Pro... the money doesn't really matter but still not going to upgrade and pick up another $1000 device payment when there is absolutely nothing a new phone will offer me that I care about. (That includes Face ID... the Touch ID button is still going strong and nobody has broken into my phone despite it's lack of Face ID.)
But, but, but... your 8+ was such a poor purchase choice!
I’m ready for no more phone payments for a while as well. Paying this Max off next month. I’m okay skipping 2019.