I bought my Pentax Spotmatic new in 1966. It was my first "real" camera. I still have it.
The thing has the same feel as my Leica M2, just a little heavier. The fact that the thing works just as well now as it did when I bought it back in '66
must be a testament to how well it was built.
I don't think my Canon G11 will last 46 years.