Since it is a runway piece, I don't think there are many in production to begin with (between 50-100). I also find it quite difficult to find old seasonal bags once a new season has commenced. Cruise is lunching late November/early December so these bags would have been pulled from the boutique and stored elsewhere (or destroyed, that is the myth LV SAs tell you for bags that don't sell or didn't make the quality control cut).
In any case, I really LOVE the PM size. I decided not to buy it during its launch because I wanted to see the iconoclasts collection, knowing that the prices would be steep. Luckily, nothing in the new collection triggered the "love" button, so now I'm back to reconsidering the Dora PM. The only problem now is my SA has challenged me to not buy any LV for a month! Apparently, I see him too often. LOL So we'll see where this goes.