We'll, I've read this thread and visited the Printrbot website. (Would you believe my phone tried to change that to "print turbot"? I'm working up a real dislike for this...thing.) I find that Printrbot Simple fascinating, reasonably priced, tempting, and utterly incomprehensible.
Several sources suggest that 3D printing is the wave of the future. I know of at least one model company, White Ensign, that's released at least one 3D-printed: a 1/700 trawler.
Don, I hope you'll keep us posted on how this apparatus works out. But I think this particular Olde Phogie had better wait for the next generation.
Youth, talent, hard work, and enthusiasm are no match for old age and treachery.