The fruity drinks of the day run anywhere from $7-12 depending on the cool vessel they are in. I find buckets of beer work well cuz you save a few bucks, and a few drinks to the bar (or flagging someone down!)
We also do rum runners in our luggage, get the fountain card, carry a flask and make our own rum and cokes when we aren't drinking fruity drinks, beer or wine.
Have fun! The allure is awesome!