Wow! Six posts in and I'm already makin' enemies. Typical for the 559. If Zep is your cup of tea then party on. Music is like art or women you know beauty when you see it and everyone sees it differently. However, big record contracts, big stadium concerts, big limos, big drug habits, big play on commercial radio...sounds like corporate rock to me.
When evolution is outlawed, only outlaws will evolve.