My two biggest regrets - Missing the Original Lynyrd Skynrd and Original Van Halen lineups. Ronnie Van Zandt died before I was born, and DLR left VH(the first time) when I was 6.
I caught Lynyrd for the first (and only, as it turns out) time at the Concord Pavilion about 3-4 weeks before their plane went down. They were damn good live, as a matter of fact.
Do you remember that the week they crashed the plane, their new album came out, with them standing surrounded by fire and the top single was 'That Smell', about death?
Man, that was very weird at the time.