It also takes TONS of fiddling around, and the patience of a saint to even produce something useful with it. If you want something better like the Ultimaker 2 or 3, you pay around 4000-5000$ in Sweden, and most people aren't ready to fork out that kind of money. However, you can always gamble on cheap Chinese clones of the older makerbots, often made in plastic instead of wood or just coated wood for that matter, but the same enthusiast process involved, it is NOT just print and you're ready, it takes TONS of work. Lots of preparation, and you need to clean and prep. your 3D work before you hit the print button so to speak.
I'm a 3D modeler, I've been working with 3D for over 20 years. I've YET to see a useful home-model that isn't just "look - I - printed - a - stock - model - ma!" tech demo. You'll actually be better off with a good CNC machine if you want to make prototypes on the cheap.
But they're fun tho...if you have the time AND the money to burn on the countless rolls of ABS plastic you're gonna need.