Hello,
I enjoyed using my 1938 Leica IIIA with more modern lenses, in the 1960's. The Leica M cameras of the 1950-1960's were very robust cameras which had extremely good optics. In 35mm cameras, Leitz truly ate Zeiss' lunch. Nevertheless, with film photography, I was enticed by cameras which used larger film.
In about 2002, I bought an 8x32 BN, close to the end of the line. In eye relief, FOV, and weight it was outclassed by the Zeiss 8x32FL, which became my standard glass in 2005. During the same period, I decided on a 7x42 Dialyt Classic over a 7x42BA. In the case of the 8x32, the Zeiss was a more recent model, In the case of the 7x42, they might both have been considered obsolescent.
Stay safe,
Arthur