Hmmm ... have been away from APUG for some time and it's nice to be back. The thing about analogue photography is that it is a physical process based on very well known chemistry. If every film manufacturer departs the scene it is still possible to create one's own photosensitive materials at a much more advance level than ever dreamed of by Wedgwood, Niépice, Daguerre and their ilk. I could work for 3 lifetimes and never produce a CMOS chip, memory, or write the software to control the same, but I can coat a glass plate or a piece of mylar and compound a developer to bring out an image exposed on that medium. In fact, it is fun to do. I could never produce a digital camera, but I can put together an analogue camera that will produce a pretty good image. I can even make a rudimentary lens.
Of greater concern to me in this rather strange world in which we live is the difficulty in obtaining the basic chemistry. Our paranoid and regulation encumbered world seems to believe that the average person shouldn't be able to obtain the basic chemistry to do this stuff. Photographer's Formulary and Digital Truth still provide chemistry, but I can't find a single supplier in Canada. Well, that's not true, I can obtain research chemicals, but a gram of exotic hydroquinone that tips the scale at about $1200.
Of course experimenters find ways and we now see the advent of coffee and vitamin "C" as developing agents.