Keep in mind that Aramark on paper helps contribute to the park budget. What percentage they currently pay is unknown by me, but for what the charge, hopefully some of the revenue gets cycled back into Glen Canyon.If remember right the word is Payola! I'm sure Aramark greases politicians palms!
Link to Concession contracts webpage
"Concession contracts are limited in number and scope, are competitively awarded, range from 10-20 years in length, and require the awardee to pay a Franchise Fee that is generally around 10%-15%. Concession contracts are limited to three category types: Category I contracts exist when a concessioner constructs capital improvements on park lands; Category II contracts exist when a concessioner operates on assigned land or in a government building but makes to construction or capital improvements to the property; and Category III contracts exist when the concessioner is assigned neither land nor buildings "