I went to vegas as a pearl, and after my second day, and with only a little over 100,000 tier points, the cage personnel said I was no longer at pearl. I figured she was getting my new gold card, but returned with a platinum card. On the website I am also listed at platinum but don't have near 200,000 points. Has anyone heard of an upgrade based not on points, but betting level or some other factor? I was betting a little over $500 hand at blackjack.