I just stopped in to post the same auction (late, as usual). I think we may be seeing bids by people who don't understand eBay's "Dutch" auction format. They may not realize that their bid is "per bottle". If I'm wrong, I'm going to post a few auctions and fatten up the kids' college funds.
The thing is, it isn't real until someone actually buys a bottle at that price. Heck, I could list a bottle for $10,000 if I wanted. However, if that number available drops from the current number of five, or if someone knows that it was once higher than five and at least one has sold, than this is indeed a bad sign.
They will sell, because there are bidders, and the auction hasn't ended yet. The bidders name their price and the number of bottles they want, and when the auction is over, the highest bidder gets the number of bottles they bid on at their bid per bottle, and the next bidder gets any remaining bottles at their top price, and so on down the line. Right now there are two winning bidders at $65/bottle.