Hey! Obviously, you Led Zep smashers never saw them Live! OK..I am a 57 year old rocker/player and saw Zep at the Long Beach Arena (Cal.)in 1974 and in St. Paul,Minnesota in 1978(?). In Long Beach they were spectacular! The guys were tight and the crowd was awed. The sound system contained 4 huge Urie (Russian speakers) that hung from the center of the ceiling and pointed north,south,east, and west. This allowed sections of the sound to rotate around the arena as if it were a Leslie speaker effect. ( I was in the top rear seats and could see the speakers well.) Whole Lotta Love effects were ....mind boggling. Robert's voice was impeccable, Pagey's speed playing and note ad libbing were genius, Jonesy kept the foundation bass driving, and Bonzo drummed relentlessly, and with his hands on solo. It was..and ..will be...the greatest blues/rock/metal concert I ever attend. To bad you missed it.  In St. Paul, the crowd was out of control with bottle rockets streaming past our faces and crowd surge burying me under a 300 pound corpse. The management is too blame for that seating fiasco (no chairs on the main floor.) We left.