It's funny. I bought the iPhone X on release date and I'm still using it. Last year came and went and the iPhone XS models didn't impress me to the point where I'd like to upgrade. It's been almost a year since then and I'm still perfectly happy with my X. The latest iPhone 11 leaks haven't triggered my curiosity either. As of now, I have no desire to upgrade and from all we know at this point, I don't see that changing. So I will likely be keeping my X for yet another year.
This is funny because I used to be the every year new phone guy. I don't know if I'm getting old or if the device market is maturing to the point where annual upgrades just aren't necessary.