I’m sorry but this is the most dog water take I’ve ever seen. Firstly, what to you suggest happen to used MacBooks? Send them off to a pile of burning electronics for kids to sift through for precious metals like other e-waste? These machines last 7-8 years with official support, and the ones prior to 2015 have user changeable components and can easily run more supported OS’s like linux. There’s absolutely nothing wrong with buying used mac’s so long as they’re not enterprise or iCloud locked.

Make sure you have Pages, Numbers, Keynote, Garage Band, iMovie, and Safari.

Anything is just a bad knockoff.

on a serious note, it all depends on what you do with your machine. personally i like to swing for the open source projects that support what the native apple apps don’t: VLC vs. Quicktime, FireFox vs. Safari