Seen:
Pearl Jam (saw them in 1992, my ticket was 9.50, and that includes the $1.50 ticketmaster charge) - best show I ever saw. Played at Tipitina's. WTUL (Tulane Radio station) recorded the show, and then a few months later, at Wildman Steve's in Auburn, I saw the bootleg for sale. Seen them a few times since then - love that pretty much everything since their 1995 tours, you can find official bootlegs. Their Wrigley show in 2016 was outstanding - live CD/DVD "Let's Play Two"
Buffett several times
Metallica (First time on the GnR tour in 1992, and then again a few years ago here in St Louis. I've got both night tickets for the 72 Seasons tour in November)
Cowboy Mouth (if you get the chance to see them in New Orleans, do it. It was almost like a religious experience seeing them at Tipitinas).
Pink Floyd - In Birmingham in 93 or 94
U2 - B'ham in 92 or 93
Sammy Hagar - never got to see Van Halen, but did get to see Sammy in Vegas, and Michael Anthony played bass with him the entire second set.
Stones - Saw them in NOLA on the Steel Wheel tours
Tull - Saw in NOLA when I was in high school
Danzig - On their Danzig III tour
Social D - on the Caught Between Heaven and Hell tour - I broke my nose in the mosh pit
Rush
The Who - Saw them a few months ago, so more like "old who" but Townsend did the windmill, so I'm counting it.
Chili Peppers - Seen a couple of times
AC/DC - Saw at Wrigley in either 2015 or 2016
Garth Brooks
Sister Hazel
Lollapalooza 92 - In NOLA - Jesus & Mary Chain, Pearl Jam, Soundgarden, Ministry, Ice Cube, Chili Peppers
Haven't seen:
Gaslight Anthem - saw Brian Fallon solo, and have tickets to see them here in St Louis next month, so looking forward to that.
Regrets:
Nirvana - my roommate freshman year had an extra ticket to see them in B'Ham - this was in December 1992, but I had a final the next day and didn't want to chance it.
Motley Crue - Was going to go to the Crue/Def Leppard show in Boston, but then Covid hit. When they came to St Louis, my daughter had an AAU tournament in Louisville.
Def Leppard - Photograph was one of my two favorite songs growing up (this and Panama), and just never worked out for me to see them in concert.
Van Halen - Wish I could have seen Eddie play live.
Alice in Chains - I had tickets to see them when they opened for Ozzy, but Ozzy got sick, they rescheduled the concert, and I couldn't make the rescheduled date. I'm more mad that I didn't get to see them than not getting to see Ozzy. This was with Layne on vocals, several years before he died.
Not Band Related, but I had a chance to see Sam Kinison right before he died, but passed on it.