Earlier quoted context omitted.
Being able to swap out RAM and storage and battery from factory-provided can extend the lifetime (and even increase the performance capacity) of a given machine at nothing more than the cost of the new parts. It isn't just the cost of new parts. It's also the cost of those parts being larger in order to accommodate user-accessibility and replacement. When everything is surface-mounted on the PCB it can be made a lot…
> Why do we want this from laptops? Why shouldn't we? I would gladly sacrifice a few mm of thickness for a machine where I could upgrade the RAM and storage (and replace the battery) every few years. Not only would that save me money, but it's much more sustainable from a manufacturing and waste perspective. I just finally threw out my old (sadly broken) 12" G4 PowerBook, and marveled that it had a removable battery…
Yes, modern Apple laptops gave up the “brick battery that slips out with a latch.” But in place of that we have Terraced internal batteries that can fill any volume