Yeah, the live show is something everyone should experience at least once in their lifetime. I was lucky enough to see them numerous times in the 80's, unfortunately too young to see them live in the 70's.
even in the 80's, 90's and 2000's, they put one one hell of a show. I saw them in 2009 or 2010 and the concert was clocked at 2hrs and 21 minutes and was probably the loudest concert I had been to since about 1989 (one Ratt concert left me deaf in one ear for 3 days).
But yes, the visuals, the stage show, the fire, explosions, fireworks (if you are lucky enough to be at an outdoor concert, you get REAL fireworks that light up the whole damn sky).