The digital camera market is over $20B a year (
https://www.statista.com/outlook/cm...-multimedia/digital-cameras/worldwide#revenue) and projected to grow (admittedly a a low CAGR). Hardly a dead market.
Some stats I ran down--accuracy not guaranteed. Only FWIW:
Total camera sales in 2021 were down 6% from 2020. 8,361,521 units shipped. [That seems like a small number, and I was surprised about it.] Of that group, camera's with interchangeable lenses totaled 5,348,271, representing an 0.8% increase from 2020. Compact (all in one) cameras were down 16%. Mirrorless cameras outsold SLR by a million units, an increase of 67% from previous year. China was the single largest market for stand alone cameras.
Contrast: 1.43 billion smartphones were sold in 2021. Each with at least one camera feature.
The stand alone camera is not a dead market. But as it survives it'll no doubt be more for the pros, and hardcore hobbyists. As a camera non-enthusiast, I own two very out of date digital cameras. But I don't know where they are. In a box somewhere. However, waifu and I have three sometimes smart phones (I hate to admit that), plus two tablets, all with cameras. I think that describes most folk's situation when it comes to the need for cameras.
Interestingly, in the recent Chinese sci-fi television series,
3 Body Problem, the main character falls into 'the trap' after using a Leica rangefinder, and then developing some mysterious pictures in his dark room. Very retro. Chinese TV shows all feature record players (and sometimes tube integrated amps) when depicting domestic living rooms. So perhaps there's a lesson, there?