If you don't have anything else going on on April 13, why not head down to Louisville to take in some spring football? I know spring football is not the most exciting thing in the world, but A) It's football (kind of), and B) it will be accompanied by $1 beers, according to ESPN's Brett McMurphy.
Budweiser and Bud Light are the only beers that can be purchased at $1, so don't show up expecting anything that will delight the palate in extraordinary ways, but it's beer, and it's football in presumable sunshine, so who cares? Considering that ice-cold refreshment at a football game usually costs anywhere north of $7 during normal circumstances, fans may not be in a position to be terribly picky.
Charlie Strong and the Cardinals played in front of roughly 15,000 fans at their 2012 spring game, and I would expect that number to be significantly higher in 2013. Heck, I live roughly 600 miles away from Louisville, and I'm thinking about going!*