You can now get a personal fabricator for $5000 from Desktop Factory. That’s about the price point where LaserWriters started to gain widespread acceptance. Although I’m a big fan of 3-D printing, I don’t actually expect them to appear in most houses anytime soon. I get excited about them because they dramatically accelerate design cycles for anyone building solid objects of any kind.
By the way, you can also fabricate objects by shooting lasers into granulated sugar too, if you prefer. Not very practical, but worth a peek.