Sounds like bullsh*t and at least one site agrees with my intuition:
> Legend: Because of the advertising value of having its products featured at Disney theme parks, Coca Cola provides Disneyland with all of its beverage products free of charge.
>Behind the Legend: This is true, but highly misleading. For years, co*ke has had an advantage over rival Pepsi because it provides its products free of charge to all of its customers. The company makes up the loss by requiring that beverages only be sold in official cups or containers -- and charging an enormous amount for those contains. The container charge is based on a sliding scale depending on the customer. Individual consumers, purchasing beverages at a grocery or convenience store, pay only a few cents for the can or bottle in which their beverage comes. At the other end of the scale, movie theaters and theme parks like Disneyland pay as much as $2.00 for a single drink cup, making the exorbitant prices charged for drinks at those locations completely understandable.
