> Amazing that companies used to build such sturdy products that they could be cheaply fixed 15+ years after they were sold...
The award for most durable SLR has to go to the Pentax Spotmatic. The first ones were released in 1964, and they are seemingly indestructible.
Even the exposure meter is a future-proof design; it was designed for mercury (1.35V) batteries but the circuit was designed in a way that modern LR44 (1.5V) cells "just work"!
Nikon lenses from the same era generally need a CLA because the grease used on their focusing helicoids gums up over the years and makes focusing feel dry, bumpy, and just plain nasty. I have come across some Super Takumar (Pentax) examples that are moldy enough that they would probably grow mushrooms if you left them outside soon the shady side of a tree, but the focusing feel is always smooth and perfect.
The only lens I have that feels better is a Voigtlander and it cost $500 vs $10 for an ugly but usable Super Takumar lens.