I'm a bit skeptical of the 3D printing craze.
3D printers are an amazing prototyping tool. Just in few hours and for a few dollars, you can test out your designs. Something that previously would be much more expensive and time.
But for long term production deployment where durability is important, I'm not so sure.
Although some of the stuff being tested looks pretty cool, like melting metal dust with lasers into the desirable shapes.