The real issue right now with 3D Printing, most of the stuff you can print is stuff most people really don't need.
The last time I wished I could have a 3D printer was to replace a Worm Gear for my Garage Door Opener. That was about 6 Months ago.
For decoration, I really don't want Cheap Plastic decorations, and a new phone case isn't that interesting either.
Right now 3D Printing is really still for industry.