Great article, Leon and thanks for sharing it.
The points made are, fundamentally, similar to those I made in a somewhat "enegetic" exchange of views I had with a digital evangelist from a local camera club a couple of years ago. Personally, I have no axe to grind with digital cameras as I enjoy using them as well as film cameras. Trying to have a conversation with this guy was hard work as he he just kept spouting "facts" like "the human eye can't resolve more than 300dpi - therefore, what's point of shooting film or using chemical processes to produce prints??"
We'd be fools to deny they have advantages in certain respects; immediacy, technical excellence, variable ISO, clean / non-chemical processing (especially if you have no darkroom), etc.
However, the Nikon F6 / FM2n / FM3A, Pentax LX, Canon F1-N / EOS-1 are still top of the shop when it comes to 35mm and only sourcing replacement parts causes issues. Actually, the F6 is still in production. Incremental improvements in sensors isn't a non-issue with film cameras and I think it's true to say that most film users prefer the look of film-based photos - or there wouldn't seem to be any real point using film otherwise.
My friend (who is a professional photographer and runs a camera shop) gets frustrated with the major camera manufacturers when he has to approach them for costings to repair defective digital cameras that are out of their guarantee period. The reason? The repair is often more expensive than the camera's original cost and the cost of a more highly specified replacement.
I might be wrong but I wonder whether camera manufacturers really want to repair any of their cheaper kit and having to perpetually download and instal firmware to remove / reduce the impact of glitches seems a sad indictment of the fact that the product was released without having been developed / tested properly.
You only need to look at product life-cycles to see that (for one example) Nikon used to bring out new models of film cameras, on average, about once every 8-10 years. These days, technology allows (requires?) companies to release updated / replacement products every 2-3 years, maximum.