I worked and missed it, but I don't watch them anyway. U2 halftime show during SB XXXVI I watched, even have it on DVD and watch it from time to time.
Even though 9/11 was a great tragedy, in the aftermath was a strong sense of unity and patriotism. That halftime show captured all of that, it was something the whole family could watch. The end where the victims of TWC rose into the sky(as if to heaven) and Bono revealed the American flag in the lining of his jacket brought a strong sense of pride, conviction in our values, and patriotism.
It wasn't about selling sex, grabbing crotches, showing boobs, just about being a proud American and American values.
Even the SB itself, as the underdog Patriots would be the first team to forgo individual introductions for the starters and come onto the field as a team(something done on a regular basis now). Then rising up and playing the game of their lives to win a game no one thought they had a chance to on a walk off field goal(as time expired).