If it was Makerbot who accepted Bitcoin then yes I would buy me one  
However there are alternatives on the market like on amazon where you can buy, with bitcoin through all4bitcoins, a better 3d printer for less money.. euhm Bitcoins
 I have read that if the 3d printer has't a case over it that it could influence the detail of printed items or completely ruin your item you are printing.
Regardless it is a great attempt and i hope that the business will flourish. ( however i do not see a private person purchasing one of these while there re alternatives out there)