Been to a few more than some less than others...Here's my list
Grateful Dead x 12
Rush x 2
Motley Crue x 2
Robert Plant
Robert Plant and Jimmy Page
Crosby Stills and Nash x 2
Rolling Stones x2
Pink Floyd/Roger Waters x4
Fleetwood Mac
The Who x2
Steve Miller Band
Yes
Ratt and Poison
Iron Maiden
Doobie Brothers ( free concert )
Aerosmith'
Metallica x 3
Slayer, megadeath and Anthrax
Bon Jovi
James Taylor
Johnnie Cash
Stone Temple Pilots
Almann Brothers
Bob Seger'
Guns and Roses
Alicia Keys
And around 200 all night house/techno event s and about 1/2 of those within the past two y years