45 years ago I owned my first camera, Waltz Envoy RF with 50 Nikor fixed lens. All my college pics were done with that camera. I bought a set of aux lenses that were junk. Yes I hated the fixed lens. Even used a 2 1/4 Rollie for the yearbook. Craved different lenses.
After graduation a Pentax Spotmatic with 6 lenses was purchased and I used that until I got hooked on an M3 that made those Pentax/Takumar pics look sick. A 125 Hector was mixed onto a roll of slides with homemade adapter. The difference was like night and day.
Since then there have been more M`s, Leica R`s, a few 4x5 settling on a Zone IV with interchangeable lenses 90 to 300.
There is even a Rollie 35 Tessar mixed in 5 years ago with a fixed lens I don`t mind so much anymore.
Latest is a Canon A610 digicam with a fixed zoom.
Forgot the 111C and 111F that are like new but needed new curtains and cla.
These are a joy to use as they fit your hand like nothing else. If fitted with a bayonet to take modern Leica lenses they woud be perfect.
Got way to much stuff I know.