This debate will probably last forever. Although I hate the Load/Reload era, I'm also against bands churning out the same thing with each release.
I guess change is easier when it's gradual. With Metallica, it was from one album to the next. I think most people can't get over the shock of seeing the once great Metallica cut their hair, smoke cigars, tour with Kid Rock, and write songs with 'bitch' in the title.
I know image isn't everything, but they just didn't practice what they preached. Metallica once said they would never want to be on MTV for example.