Interesting thoughts here, but my take is that the “digital print “ model may well work on a completely different business arrangement. You may end up with design houses, print shops and distribution networks, rather than the current large scale production factory set up doing everything.
Take a look at this.....
www.kickstarter.com/projects/city-of-jordoba-3d/city-of-jordoba-3d-printable-terrain-by-otus-and-lovecraft
Using this type of arrangement, you could buy your files, port them to a local print shop, and pick the item up when printed.
Whatever we get from this revolution, you can bet that it will come along faster than you think, and be not quite what you will be expecting....look at what happened to the wet film market and how fast it happened....