Just read an article on The Age about how 3D printing is yet to really take off despite the hype. One theory is that the gap between the hype and the reality is currently just too big.
It reminded me of a previous discussion here on Workshop where people talked about how handy a 3D printer would be for printing your own parts, etc. I'm still curious whether people think one day every home will have a 3D printer, or whether its just too complex to ever be truly mainstream. And I'm still struggling to think of reasons why I would need one, which is probably the main reason 3D printers haven't taken off.