Are there concerts that you regret not going to that you turned down?

For me there were two:

1) Yes performed at the Beacon Theatre as a reunion thing in 1993. I was like “they’re has beens” even though I loved them as a teen. My newlywed wife went by herself and I’ve never lived it down with her.

2) Tool on their 2022 tour. I didn’t have the courage to go by myself. Nobody in my personal life likes them