If you are interested in NFTs, then I would advice you to do your own research and also step into their market with low expectations. Many casinos started to mint their own NFTs when it became a trend and pretty much al companies which have nothing to do with Bitcoin or cryptocurrencies started to mint their own as well.
As stands now the market of NFTs have shrunk much in both volume and value and those how invested hard during the peak of their popularity are now sitting in losses.

If I were you, I would rather focus on their token speculation or only invest directly on their bankroll, as it is much safer than trading with NFTs.

Keep in mind the most popular collections are already at loss, so when we talk about a niche market like NFTs by casinos then the volume of possible interested buyers becomes even lower than the usual.
Whatever you decide, good luck and hope you share your history of success here in this thread when you decide where to invest your money in.