I suppose I would dabble with some wet plate or making my own emulsions to satisfy a certain desire to use a hands on craft approach, but for 90% of my images I would simply go digital. Most of what I enjoy doing requires film and paper that provides sharp resolution and a broad tonal scale. While wet plate and hand coating film can produce wonderfull results and I would love to try them, they will never produce the results I want for most of my work..
I suppose the cut off point for me concerns time. I can see where one could spend an enormous amount of time producing emulsions and preparing materials and less and less time actually making images.
I don't think we need to worry about film going away. That has been discussed a million times already. However, when the price gets to be around 1$ per 4x5 shot, finances may force my hand to change to digitial.