I noticed this as well. They are listed but not available. It will showed "winners" of the lot on the side but I always wondered if it was some type of marketing ploy. I noticed they do the same thing with San Lotano.
I do recall winning some Opus X on there before but then when my order shipped they were "back ordered indefinitely" and I ended up getting a refund. I have also scored some high end Padrons on there in the past but havn't seen any in a long time.