I'm not sure that's entirely fair. I rocked the original iPhone for over 4 years. The first 2.5 it was flawless. For the next year it was slower but still worked great with only marginal battery drain. The last 6 months it still worked but basically unupdateable, but so what. Typing this on a 6 year old Mac, runs everything well. No hardware will last forever in an exponentially expanding world of software built for ever increasing hardware capabilities. But Apple does a stellar job with product longevity with consistent build quality that only a few of their competitors have even begun to attempt to emulate and an OS that's as universal and timeless across generational platforms as you can get.

Most of the other copy cat tablets and iClone phones are one off orphanware from the moment you peel the protective film off the screen.