I'm still undecided. I have a little over a week to make up my mind.
On one hand, my 6S Plus is smooth as butter on iOS 11, however, the battery takes a beating. Hoping that's fixed in 11.1.
I really don't want to be with a 1st gen new design given Apple's QC of late. I thought of just going with Apple annual upgrade program, but I don't like the idea of renting my phone. I may just buy it all at once and offset the cost with a 6S Plus sale. However, that requires me to keep the phone for at least 2 years, otherwise, I might as well rent iPhones for the rest of my life.
I love the design of iPhone X, but at the end of the day, I'm just opening apps, doing what I need to do, then closing them.
Plus I want to see what 2018 brings. I'm hoping all the iPhones have the X's design and the cost comes down to a normal price. I really hope they don't plan on charging $999 going forward.