Everybody is doing that now because commodity parts are so cheap compared with earlier that we have entered the disposable era, sad to say.
However, when things needed to be repairable, Apple made it as difficult as possible with bizarre internal design choices and it frequently went horribly wrong. The first 12" Alu Powerbook and the first Macbook Pro were notorious for overheating, for example. You had to remove so many screws and fragile parts just to replace a dead drive that it was ridiculous. Just look at the iFixit guide to replace drives from that era and compare to PC laptops, where the drive plate was just held on by one or two screws on the base.