I doubt that very many outfits use actual digital enlargers. They were something of a bellyflop. Digital
printing onto photo paper (versus inkjet) either involves colored lasers or some kind of programmed contact platen. There are still some full-service labs around which offer true optical printing via enlarger
too, since the processing step itself is virtually the same. But advanced printing controls get rather
expensive labor-wise in direct optical printing, and there is a smaller labor pool with the requisite skills. Still, there are folks who prefer the look of optical and are willing to pay for it. If you learn to do
it yourself, direct enlargment is in fact quite economical material-wise. Time is another issue.