I'm staying at RIO and normally dine on the Strip. Gold Coast is next door and they are showing food prices a lot cheaper than RIO and the Strip. My question is, the Buffet is $7.99 and dinner is $9.99 with a "B' card. If i open the card at Gold Coast would it work at the buffet? Or do you have to acquire points on the card before dining? I will be at the RIO for a week and saving money on dining at Gold Coast seems like it's a nice alternative. But if i walk in, open a "B', card, can i walk right over to the Buffet with my card and save some money?