That's the investment for that area. I saw volleyball fans tailgating in the lot across from Cajun field all weekend long when I passed by there. I am sure it cost them nothing. Football could do the same if they want to tailgate for free. The University could look at changing the price structure inside the gates of CF but I wouldn't give anything for free there. The program has to make money. Full disclosure I do get a spot in TG1 every year since 1996.
IMO they should open the grass area around fraternity row and Bourgeois hall for first come first serve free tailgating. It gives you a little more of an on campus feel that the open field.