I'm starting to sometimes wonder why manufacturers never bothered to just ......
Probably because no engineer ever figured that their cameras will be used and be saught after 40 or 50 years later. And above all they didn't figure, that humble hobbyists try to rapair their precision-mechanics-wonders. Later, the producers didn't want that their products would survive their engineers for decades! Would be bad for the actual sales. Now every "proper" built product has a built-in predetermined breaking point.
E.g. every Sony A100 (like mine) will die after a short predetermined time because of a broken fire button, a rediculously cents-cheap and tiny part, and the exchange - not repair! - will cost you 120 Eur. A 50 years old CZJ prime-lens will be repaired for 60 Eur by a 60 years old repair-man. So we shouldn't wine about a 40 years old A1 that can be repaired with a little drop of oil. And if it should be totally kaputt it was a great tool for decades. We should wine about the habbits of todays producers and consumers of cams, mobiles, comps and all imaginable gear which poisons the world and above all many innocent children who shall "recycle" this shitty crap.