Worth noting that this exists already, here and there; you can get full color, full parallax digital holograms from, at the very least, Geola [0] - though "reasonably priced" is a matter of opinion! Making it economical is pretty difficult - the issue is that "mastering" is an inherently time-consuming process; you're writing each hogel one at a time, each hogel is only a square millimeter or smaller, and you're printing at a few dozen hertz max. So each piece inherently eats up a lot of time on the machine, like 3d printing. Then factor in that the plates are boutique, and that rendering all that data is many hours of computer time, and you're possibly looking at least 3 figures for a single A4 plate. That's a tough sell for the consumer market, when the lighting requirements are so stringent (they can only be lit by a single point source, from a strictly defined angle, with no extraneous light sources).
Source: I used to work for a startup that provided this service. We ran out of money.