So many experts in this thread! I'm sure there will be 10x new TAs built by by morning all across the country at this rate.
It would be nice if a thread could stay civil for a change. It's quite fair to say that you wouldn't want to pay $xxxx for a machine, or even that you wouldn't want it for free.
I find it extremely rude to sit back and tell someone how much their machine should cost in parts alone (and speculating on those parts at that!), and give the original creator no compensation for his time? Design? Code? Audio work? Video work?
Honestly it just seems rude to me. If Scott were ever so lucky as to sell his machine, I would recommend he price it at whatever he sees fit, and that those who were theoretically able to buy it would be lucky to do so.