Yeah, its kinda mind-blowing to think about. Just walk down the aisles at your local Wal-Mart and take a look at everything that is nothing more than plastic, shaped into a particular form. Now imagine a day when all of those things can be printed up for a fraction of the cost from a 3D blueprint. Its a real game changer.
And that's just the start. I'm sure they improve the technology over time and make other advances, printing with better materials, more refined, even printing multiple parts that fit together, etc.