can i take it down?
      Answer1:Thats why they have a reserve value to set a minimum bid.
      Answer2:Regardless of whether or not you like the final bid price the item goes for, once its sold its too late to do anything about it. Always start with a minimum bid or reserve price in mind if youre worried about the possible outcome of an auction.JMO.
      Answer3:No. You have entered into a legally binding contract. Its sold. If you want a certain price for it, either start the bidding at that price or put a reserve on it.