Thought that number might get your attention.
Past and present issues about money at COTA. Kind of long but there is a lot of history in just 4 years.
http://www.motorsport.com/f1/news/is...ack-in-trouble
Money through the Texas Major Events Trust Fund
As for Circuit of the Americas? For FY 2015, COTA is getting $28,562,562 for the 2014 Formula One race, $305,467 for the World Endurance Championship race, and $388,777 for the TUDOR United Sports Car Championship race, held the same day as the WEC race.
That makes COTA’s late-2014 take $29,256,806. By comparison, Texas Motor Speedway, for the NASCAR Sprint Cup race, will get $544,481.