Today's $8000 3D-printer is tommorrow's $150 special at Best Buy. Trust me, technology like this gets cheap and FAST. I remember when flat panel monitors came out I told my roommate that I wanted one (thought they were cool). He laughed at how "stupid" I was because 15" ones were several thousand dollars at the time. Less than 3 years later I had a 17" model sitting on my desk that I paid $350 for. Now less than 10 years later you can get a 23" one for under $150. More so than anything else, technology drops in price over time.