[danelski]

I am fine with having a phone with specs that are 3+ years old. I'm not, however, fine with loosing software support shortly buying it or the first repair knocking it out, because the parts are not available or the labour cost makes the repair unreasonable for its value.

Actually, taking on used phones with unknown history means that you'll likely end up 'bottom-feeding' where each unit bought is cheap, but you'll need to exchange them often. This strategy is even harder for less-interested who can't say what's the EOL for a phone model.

Maybe my argument doesn't hold in richer societies where you are effectively subsidised by people who'd still exchange phones every 2 years making them better value.