What I am thinking about is the upcoming unfortunate death of the miniatures industry. 3D home printing is at its infancy, its actual use at this point is pretty slim. But, for our own little commercial perspective it may have a big impact.
1.) The MakerBot is at a price point that a tech early adopter could afford one in their own home
2.) The RPG market has a large overlap with the tech early adopter market
3.) The MakerBot is really only useful for making small static plastic statues
4.) That is a miniature.
I can very quickly see someone starting to make their own custom plastic miniatures for games like Warhammer or Warhammer 40k where the miniatures are EXPENSIVE (I have a large Genestealer Cult, Orc/Goblin and Ork armies in hibernation) making their own miniatures that are iconic. "Look at my custom Chaos Daemon Prince"! and then someone will put the electronic file on-line and others will make their own copies. Then someone will make a 3-d scan of some trademark miniatures, illegal or not, and a whole counterfeit market will open up. How will you tell a real plastic ork from a MakerBot plastic ork after 3 layers of acrylic paint?
So how long do you think before the miniature market collapses from $10 for a plastic dwarf to $5 for a template file made by a hobbyist on RPG now?