Visiting the NEW HOLLYWOOD CASINO in Larwrenceburg IN, the OL ARGOSY, I remembered this tip.

Something Betty & I have been doing for many years when getting a new slot card at a new Casino, showing Betty's Diamond Harrahs card and getting upgraded to that Casino's equal value Slot card.
You might get a little cheated as we did at Hollywood, since Harrah's card covers such a large range of Tier point; up to 11,000 - 100,000 Hollywood didn't know how high you are and give you their intermediate card when you may have qualified for their Top card.

We did this when French Lick IN opened several years ago and got Free rooms right away for a seminar we attended 2 weeks later.

Might work at your next Casino.