It’s the opposite. Nowadays a computer can last a decade. In the past future-proofing was futile. The hardware was obsolete within a year.
Thing is, even older machines are much more serviceable once you exchange the hard drives for an SSD. It'll never cease to amaze me just how much the pre-Retina Unibody Macs sharpen up in performance once you give it any run of the mill SSD.
I would never choose to run my development workflows off of that, but I did try it just out of curiosity and it's doable. In a pinch, I could live like that.
I know people on very tight budgets still using both Macs and PCs of that era. I get asked to fix them occasionally. Usually it's just a dead hard drive. They're always so satisfied when they get back their suddenly brand new 12 year old 4GB laptop speeding along with a new 128GB SSD.
Nobody here believes me that these people exist. It suggests how little people talk to people who aren't just like them.