Those may have been the largest number of attending, but JMO, I preferred the concerts back in the 70's. Cal Jam I and II .... All the concerts at the Big A stadium in Anaheim, CA, the LA Coliseum, venues like that. Big concerts but not in the area of half a million or million folks.
And the best of the best IMO were when you could get a chance to enjoy acts just before they hit the really big time in clubs that held a few hundred at best.
There really was more interaction between the bands and their fans.
But hey, it's only rock and roll and I like it