Well, I'm sure, but we already have places like Shapeways etc. While expensive and a bit on the crude side, it's a heck of a start. So I'm imagining more companies like Shapeways with better quality in the future, for more reasonable prices.
Eventually (a long while) when it's becoming perfected we'll see even more craziness. Pretty cool stuff. I'm not sure when/if it'd become cost effective though.