1. There's a certain number where something becomes an impulse buy. For me and 3d printers that was $200. Ultimately I decided that with inflation, I spent more on my original NES set years and years ago.
Makerbot could have killed it at that price, and still can if they can figure out how to do it at this price.
2. The only hurdle past price is having the needed skills to create things in 3d. Printing other peoples stuff off the web gets old after a while. Luckily the 3d modeling software I taught myself to use really well can output STL files.