Another article giving the general idea a bad name. If it works for him, fine, but "How and why I stopped buying new laptops", as an article, should not be about this idiotic level of self-flagelation. This author is promoting a likely-to-be harmful path, one unsuitable for almost everyone.
The energy efficiency of an Intel Haswell (June 2013) is off the wall better than the rusty dusty antique this joker is suggesting as an ok workbook. There's so many incredible semi-modern used laptops to consider. You don't have to be a weird retro-compute freak who loves stupidly slow machines like this guy. You can buy really nice used laptops that perform wonderfully, & get great great deals on them.
Incredible what a dis-service this article does, how much of a turn off it would be, to most sane people considering whether to buy used. It ends up serving as propaganda for buying laptops. In no way do you have to sacrifice your quality of life, like this dude, if you buy used.