I think it will be like printers -- a bit of both. Not everyone has or needs a printer, and almost no-one owns an automatic book print/collate/binding machine.

I think it will be like printers -- a bit of both. Not everyone has or needs a printer, and almost no-one owns an automatic book print/collate/binding machine. A good, small, cheap 3d printer may become just about compulsory for anyone who, say, does home repairs, does any kind of professional design work, does arts and crafts, and so forth.