To tell you the truth I would do the same. Superbowl ads are the best of the best in ad space. The actual show gets millions of viewers and then afterwards, everyone talks about the, "cool" ads they saw or ads that were interesting. Lots of people just watch the superbowl to see the ads so you know you are getting your product across. Then people go on places like youtube where you can watch all the ads! $3,000,000 for 30 seconds is well worth the money if you are introducing a new product to the market. http://news.yahoo.com/s/ap/20090201/ap_en_tv/super_bowl_ads
Yes we know that but the bottom line here is that most people using adsense have seen a drop in revenue from adsense.