Years ago before Covid, my credit limit was over $500k for my credit card. They were giving back 5% rebate for travel charges.
I charged $400k to the card playing table games and received my $20k rebate from the credit card. I was able to do it again the next month for $500k. So total was 45k return.
The year after, I went on the same cruise and they told me I had to pay 5% fee for table games. I declined. I think someone ruined the fun. Bummer.