>>3381300some combination of factors around lower overall supply, and the fact that mechanical cameras are practically invincible with proper maintenance and electronic parts will inevitably fail.
That said, it's a little silly the way some things seem to hold value for collectors or whoever. I have more or less inherited a very minty F2 with the meterless DE-1 prism and this thing does not seem like it should be worth $800 CAD+ yet apparently it's very sought after. I have had an FM2N for many years and it's not easy from my perspective to see why you'd rather shoot the F2, but I guess it is pretty qt.