I have an iPhone X, an upgrade from the 6plus, and that replaced a 4s. I will probably wait for the XIs or XII (or whatever Apple will call them).
My phones sort of follow the same pattern as my other electronics.
My computer is about 8-9 years old, my iPad is 5 years old now and my iPod is at least 10 years old. I do promptly install the latest OS and app upgrades where I can.
I also have a Power Mac G4 from 1998 (as I recall) that I can still use for some applications and to store backups of my photos.
So, my answer would be no!