Super Bowl ads work (EDIT: if you're Budweiser)

Super Bowl ads are costing about $4.5 million for 30 seconds this year -- highest-ever -- which makes sense because each year seems to get another million in that audience column; last year's game absolutely sucked and still, somehow and someway, 111.5 million people watched it. That's a lot of eyeballs -- Katy Perry's Twitter follower count is only hal…