Is the issue here that you have a reservation for T.Rex that you are trying not to miss? I ask because T.Rex operator Landry's has a VIP card that you purchase for $25, but you receive an instant $25 credit on your first usage, you also get a $25 credit during your birthday month. The other perk is that you get priority seating so you go to the front of the line of walk-ins. Landry's also operates Rain Forest Cafe & Yak & Yeti, they have hundreds of other locations & restaurants around the country. I'm not a big fan of this sort of thing but in this case I think it's pretty worthwhile. Not sure when your trip is planned, it takes about 7-10 days to receive the card in the mail. The front of the line privilege could be really useful during a WDW trip.