Camera manufacturers made cameras (just like today).
Consumables like chemical companies made chemicals then and today I guess you'd say ink manufacturers make ink.
Consumables like paper companies made paper then and paper companies make paper today.
I grant you that due to innovation, the digital camera progressed so fast that they quickly became obsolete, but Nikon and Canon were churning out new and improved cameras every year back in the analog days.
Back in the seventies when autofocus and automatic cameras came out millions of older cameras got left behind when a lot of people switched to the new auto everything cameras. So throw away is not altogether new.
But I get what you mean. My Hasselblads worked flawlessly for 30 years and would still be working if I hadn't switched to digital.
But to use words like "photographic business model" is too all encompassing, as if there were a vast conspiracy by photographic companies to create obsolescence. It just sort of evolved and it will probably begin to slow down considerably since for instance my Canon digital camera is now 4 years old and the new improvements are not substantial enough to upgrade.
Comparing digital and analog is sort of apples and oranges business-wise because in analog it was a sort of self contained industry. With digital it is spread out to include all things computers, computer programs and even telecommunications. And as there are improvements in different areas it bumps up the change in another.
But as for the throw away mentality, I don't really care as long as stuff is recycled and reused. Don't forget back in analog days, nobody recycled anything, they just hit landfills. Even back in the 70s people would pour crap into holes not even knowing or caring it came out in the groundwater.