Eleven of the bids were by one person, a veteran with 16 feedback, who alone pushed the bid from USD60 to just under the winning bid by someone else with 215 feedback.
Either could just have wished for a Mac II in fine and close-to-original condition. It was, after all, their money.
Looks like someone put in a ridiculously high bid to make sure they won, but then got shilled by the seller to drive the price up. Another reason not to bid early.