This is why a slot game based on this would get the NFT market going as well. I am sure they are hoping for a new amount of money coming from the trades of it, and the lovers of the NFT gambling from it, but at the end of the day it's a casino, so they will always try to do more to get you to gamble even a lot more if you could.
Consider it something that would be personal brand type of deal from all other places. Like if Nike made a shoe called "The Nike 001" and charged 5k, wouldn't that be something they put their stamp on and say that they think it is the best, why not do it so far and do now? This is why this game could be the game they are the most proud of.