I am very happy that I got to see most of these bands in their prime, which I think is an important distinction, that in most cases, these bands were better, in performance, and material, in the 70s, than they eventually were in the decades to follow........ I'm going to mention the "memorable" acts and shows..... I'll not mention the crappy or lackluster ones......
Led Zeppelin X8 (1970-1977)
The Who (with Moon) - 1975
Aerosmith - Rocks tour
Cheap Trick - 1978
Eric Clapton -1983
Alice Cooper - The Killer Tour
White Zombie - X2
ELP - Brain Salad Surgery Tour
Deep Purple - Machine Head Tour
Jethro Tull - Thick As A Brick Tour
C,S,N,&Y - 1974
Michael Murphy - 1976 (Austin City Limits)
ZZ TOP - X3 (1974-1976)
Dave Mason - Mid 70's
Zappa - Mid 70's
Steppenwolf - Mid 70's
Moody Blues - 1973
Chicago - 1972
Grand Funk- 1972
David Bowie - Serious Moonlight Tour
Dylan - Benefit for Rubin Hurricane Carter - Astrodome
Dylan - Rolling Thunder Review
Texxas Jam - 1978 - Cotton Bowl
Van Halen 5X (1978-1984)
Guns & Roses - 1993
Rush - 80's
Ozzy - 80's
Gordon Lightfoot - 1978
Prince X2 - 1984
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Bands I didn't see, but would have liked to have seen:
Elvis
The Beatles
The Clash
John Lennon
Herb Alpert & The Tiajuna Brass
Devo
The Police
The Sex Pistols
Jimi Hendrix
Janis Joplin
Pink Floyd
The Allman Brothers