Can someone explain how the casinos treat the new trend to have one card
good at several casinos?
Don't know about that one but the Harrahs card does not work like that. I
thought the same as you. Play on card anywhere as long as the card was good.
Wrong. I stayed at Rio and played some at Harrahs. It cost me almost 200
points against my daily average. Not only that but they charged me a play
day when I wasn't even there. Also played past midnight one time and cost me
another day. I thought if card was in play it would not switch to next day
until card was pulled. Wrong. When I ask about it they said "Don't worry
about it. We look at everything" yea right. Hope this gives some insight.
Good luck.