1973- The Who - Quadrophenia Tour, with an unknown band called Lynyrd Skynyrd. First Concert, only 11 years old. I had a cool older sister.
1976 - The Who - The Who by Numbers Tour
2003- The Allman Brothers Tour - Hittin the Notes
BB King - To many times to list
Buddy Guy - to many times to list, most recently in September at the Telluride Blues Festival. At 78he blew the doors off of all the acts
Joe Bonamassa in SLC at Abrevenal Hall a few years ago...my ears are still ringing.
The Outlaws in the late 70's in Pittsburgh, opening up for Molly Hatchet....The Outlaws stole the show with their six guitar Army lined up shoulder to shoulder whaling "Green Grass and High Tides for just under 30 minutes.
A better question might be who do you still need to see that are still performing.
Beth Hart Solo, Beth Hart w/Joe Bonamassa, Bob Seger, Neil Young