But this is still not going to give me anything like the same quality I currently get from slides and a simple $500 projection outfit, is it?
Norm: I would turn this around: even if there is a project option for digital capture that approaches what you already have - so what? What you have works and works smashingly, so why change it? The driving forces behind the migration to digital capture seem to me to be centered upon the print and the web/e-mail as the primary vehicles of image display.
The main liability I can see to what you're doing is that the availability of emulsions and processing is going to continue to erode. If you have a favourite emulsion, I'd stock pile it. Now that most professionals have switched from slides to digital, I can see the possibility of slide emulsions being withdrawn more quickly than print emulsions, which are still used by millions of snapshooters worldwide. But until the final slide emulsion bites the dust - why switch?
Incidentally, my guess is that the majority of non-professionals that have switched from slide shooting to digital were strongly motivated to do so by the tedium and compromises associated with scanning technology used to convert from film to digital. Your predilection for projection smartly by-passes this particular boondoggle.