To play devil’s advocate here, I actually think iPhones have some of the best longevity and resale value, compared to virtually any other product or brand - except perhaps if we go back decades to appliances made near the middle of the century. The fact that a device can be perfectly usable for 5+ years is pretty good compared to most other things I find myself buying and replacing in less time. Otherwise I think the…
What other things? In my home most appliances are 15+ years old -- ovens, washing machines, even most Sonos things are around 20 years old. My Yamaha PF-P 100, bought in 1994, still works perfectly well.
A smartphone is certainly more complex than a MIDI keyboard, but why would we need to upgrade the OS constantly.