As a new homeowner, I can't help but have reservations about the idea of a home that's 3-D printed. Given how it's fairly new tech, I'd be concerned about durability and if there are any breathable chemicals I should be wary of. Robots mixing cement or making pre-cast materials, I have no issue with. If we get to a time where a robot arm can build my house from scratch for cheap, I am all for it. Kind of feel bad for all the people who'd lose their jobs though.