I can see use in lack of leadscrews, yeah. That's actually a fair use for it, cutting cost. I have seen other non-leadscrew systems, however, and still question if this would be a real solution beyond what is already here. Especially since you are greatly reducing Z axis resolution.
Other than that, I'd say go for it. We may not see a current real use, but one might come around.
Other than that, I'd say go for it. We may not see a current real use, but one might come around.