If you can't beat 'em, join 'em? Chaz, I'll bet I can't really get a one day course from your shop, because I know that you have more integrity than to make a bunch of one day wonders up there in the frozen north, where proper skill development is a must. I know that some unscrupulous instructors up your way are more than happy to do a one day course for their unknowing students, then to turn them loose on us dive operators to fix, but I know that you care about your customers more than that, and rather than turning out dangers by the truckload, you'd rather teach folks to become divers.
I know you're frustrated. Hang in there. The customers you want know quality when they see it. And the ones that can't see the quality, you don't want them as customers anyway, for they can't recognize the true value that you offer.