I just got back from vegas 10-05-11 and could not find an Alaskin king Crab in a buffet!
I can garentee that there are no King Crab legs on Fremont street which is where I spent most of my time. With that said, "The Fremont' casino had cold snow crab, steamed whole blue crab, and steamed Dungeness crab legs last Tuesday night (10-03-11).....with all the hot butter you could handle. $17.99 with a dollor off if you flash your B connected card (Boyde)
I know I have had steamed snow crab at the Fremont in the past, dont know why it was cold this trip.
I heard from a Vegas local that the "Rio" might have king Crab legs......goodluck in your search.
Weggie