Yes, it is. Just check the seller's feedback and ratings. This listing has A RESERVE PRICE on it and bidders dont know what that is. When someone reaches it, they win the auction but if no one reaches that reserve price, the seller can still sell it to the highest bidder. It will sell for close to the Buy It Now price.
The other links are also auctions. You see the Buy It Now price is around $20,000 which is the value.