Well, keep an eye out for this traveling 3d printer tour.
Here's something cool. An entire building manufactured using 3d printing. This 2700 square foot office building in Dubai was completed in just 17 days. The printer used, although huge, only requires one person to operate. There were 18 other people in the construction crew. While this technology is remarkable I still don't think anyone is talking about what happens when so few people are actually needed to do this kind of work. Are we ready to adjust to a world where we no longer have to work? How complex can we get with this construction method? Imagine a single complex machine that extrudes cars all by itself, with only one or two workers around to make sure it keeps running.
More at this Reuters article