Comment by sicxu

There are lots of things in the toy, art, and spare part category that can use the 3D printing technology. Just like many other technologies, 3D printing will be adopted by designers, hobbists first. If there is enough demand, it will show up in shared workshop such as Kinko. It may or may not make into every home. Who knows. It really depends on if there is any killer app that drives the demand.