Often times eBay sellers will crank up the price to an unrealistic one instead of getting rid of the buy it now "auction" when they don't have the stock. It has been over 2 months, and it says they have more than one available, but they likely sold them outside of eBay or never had that many.
I will buy something and go back to get another one later one and find this, going from $3 to $3000.