For what it's worth, I just noticed that I received an email from an account representative at On Location congratulating the Chiefs for making it again and asking if I wanted to schedule a phone call with him to discuss tickets for this year's game. I won't be able to go, but the fact that they reached out like that is consistent with the other posts in this thread indicating that they may be willing to do a little wheeling and dealing on the total cost.
If someone who hasn't been to a Super Bowl is thinking about going but is on the bubble, I would tell them to do it.
