Honestly, because my phones seem to last about 3 years (battery life, wear and tear, etc) so I'm fine without it lasting longer. I currently have a 2y3m old HT

Honestly, because my phones seem to last about 3 years (battery life, wear and tear, etc) so I'm fine without it lasting longer. I currently have a 2y3m old HTC 10 that is a fine phone just no longer receiving security updates (for at least 6 months now) and I'm very very annoyed about it. Apple seems to be the only game in town for more than 3 years from date of launch. Plan B is accept that Android is just second tier stuff and buy a $350 Poco and accept binning perfectly fine hardware because it's so cheap that the price works out.