Greetings, Forum.
Interesting thread going here.
I would guess that one's age could be a big factor in this too. I am 60. My last NEW camera was an F2 I bought in 1975. It is still my favorite overall. I also use an F which I purchased before that, plus some other cameras I bought used since then. Those include a 1959 Leica M3, a 1930s Rolleiflex Standard, an early 50s Voigtlander Vito II, and a 1969 Kiev 4a. I use them all, and they all work properly. I replaced the ribbons in the Kiev several years ago with some guidance from Rick Oleson and some Arsenal ribbon from Oleg in Moscow. I hear that is about all that ever goes wrong with a good working sample.
I know for a fact that the M3 I use outlived its original owner, and it will probably outlive me too. It has only needed and received one CLA by Sherry Krauter since I bought it.
I am thinking about "adding" a digital capability, but have not chosen a body yet. I have no expectation that a modern, automation centric, plastic computer with a lens on front will have longevity anything like the laboratory grade imaging instruments of a generation ago. When the digi breaks I would probably want the next and improved computer with a lens mount anyway... same as with this old PC in front of me. The old one will go the way of the 5-1/4 inch floppy drive.
I suspect that when I and all of the current generation of digiwonders have passed from this earth, that my old M3 will still be recording images for some discerning young photographer. I hope so.
Happy day.
🙂