If you're still in doubt about what #3DPrinting can do, watch this guy talking about making parts for a *car*.
Note: jump to 17:00 if you just want to watch the car part without the conversation about the printer. Then you can go back to the beginning if you think it's justifiable.
@badnetmask Only for a car?
How about some 3D printed radiation shielding? https://youtu.be/1h1jhgBPA48
@badnetmask I have ABS parts I 3d printed for my motorcycle going on over six years now. Still going strong. I've always felt a 3D printer was a valuable tool, not just a hobby.