The Delta 23-199 variable speed looks like a good machine, although there is a considerable amount of unsatisfactory reviews on it. Same thing with the similar Porter Cable grinder. Woodcraft answered one of my contact emails, but not the one about why their grinder isn't listed on the catalog website. I have found that several sellers have gone entirely to Tormek and Work Sharp. The General machine looks good and I have been happy with their equipment, although I would prefer 1" wheels than 3/4". The Palmgren 82064 got good reviews by American Woodworker.
Seems like all of the grinder have tool rests that need replacing. And for turning, I have tried Mike Mahoney's free hand method and do much better with a jig which adds another bunch of money to the grinder. I guess I just don't know why there isn't a reasonable slow speed (or two speed) grinder available that has good tool rests, has good white wheels, doesn't wobble out of the box, and is a reasonable price.
Guess I will keep looking. "Need" to go to Lowe's, maybe I will see something I have to have.