Palm Desert Costco (near palm springs) had a boatload of them.

I asked how long they will have them..... She said they usually do not sell out of them, but when the vendor tells them to pull them. She did remember last year (or was it earlier this year) when they had an extra $50 off, so it can be had for $400. But after that sale was over, Alaska told them to pull the rest off the shelf.