How much would I be willing to pay to not have to run around looking for a printshop when I need to print something "really quick" when I'm out and about? I think $200 is about right. Zuta Labs in Israel is developing a robotic pocket-sized printer that Roombas its way across your paper to print what you need, when you need it.
Sure, the technology isn't totally figured out yet, and the print quality is still being improved upon, but there's some real potential here. I can't wait to be able to print on all kinds of paper sizes (home poster printing!) But mostly, I can't wait until I ca dropkick that clunky desktop printer that always has a "jam in tray 2" out the window. Or go all Office Space on it.