[jlokier]

Mine is about 4 years old.

It's still a great phone, runs everything I've run on it really well, and as far as I can tell it's working as well the day I bought it. Still receives firmware updates too.

Its data connection is still faster than any other 4G device I've used, and faster than my home internet connection. The battery still lasts all day, and the ludicrously high resolution OLED screen is still in perfect condition.

It's hard to see why I'd want to replace it before it breaks.

If it lasts, I'll probably keep it a few more years, and because of the good experience, if it breaks I might get the same 4-year old model again second hand.

Even if you gave me a new phone for free, I'd put it in a drawer because there's no obvious benefit and considerable hassle to moving over.