Agreed.
I was merely showing that the release of new camera models was as frequent with film as it has been with digital.
There was somewhat more reason to bring out so many digital cameras in the early days.
The advances in sensors as regards megapixels and noise levels, and maximum ISO as well as the extremely fast development of anti shake systems, focus systems and live view and the move away from mirrors. led to Manufacturers leap frogging each other in a frenzy for market share.
Some manufacturers like Kodak were not nimble enough to keep up and soon left the field. Others like Konika and Minolta first amalgamated, then were swallowed up By Sony who were then able to rapidly move in to the high end market place.
Makers like Rollei never successfully made the move and others like Hasselblad feed off other's technology to survive at all.
Most of the high end, large and medium format makers have succumbed. or become even smaller scale specialist suppliers.
Most makers rely on Sony to supply their sensors, with perhaps only Canon of the major players making their own.
when it come to sensors, Sony now, to all intents and purposes, controls the pace that other makers can introduce models, with updated sensors.