That's not quite correct, they've been selling at auction for over a week on ebay.de eg. http://www.ebay.de/itm/Australien-1-Unze-Silber-Drache-2012-1-AUD-Dragon-/370537822495
Fine - first one sold at a live auction. I bought that at the Perth Mint at about 9:30am on the official day of launch from another stacker at the post-launch Silver Stackers meeting auction.