I'm still not sure why. The section doesn't really answer the actual question. It's cheaper, good enough, replacement parts are cheap, and I understand that argument; I myself use alternatively some kind of very old Thinkpad (that I don't remember the specs of), a 2011 Macbook Air, or a recent Macbook M1 and for what I do with them (little more than running Firefox and ssh) the only difference that matters in practic…
For many people, it's less about the hardware and more about telling Apple to fuck off. I'm among the latter, getting kicked off MacOS when Apple made the overnight decision to depreciate 32-bit software. Onwards to greener pastures, I suppose.