I don't think anyone has exhausted the range of sound possible in a conventional rock band, but people do become slaves to their own easiest techniques.
I came from a state where 35 percent self-identify as Tea Partiers, so I'm a bit distorted perhaps in my appreciation for the larger American population.
As I got older, I never considered that tons of people were watching me on television every week. I give a nod to my parents for keeping me as normal as I could be in an un-normal adult world.