The absolute best place is a garage sale for $30. But, I don't think they are there anymore. The internet is everywhere and people seem to price the top price regardless of condition. I have been in the search for a while also. Nothing so far. I recommend decide on a price you want to pay and go from there. What I have noticed is on ebay they are astronomical prices. Machines that are on for around $400 or more seem to go on, disappear and reappear a few months later. The photos are the same. I think the best place, though it may take a while is simply to let others know you are looking and keep your eye out for one.