Maybe all that you hated.

Musicians are in a lose/lose situation... If they keep doing the same thing, people say they're stagnant. If they change, people say they've sold out. Metallica has had a ton of ups and downs, just like any band that has been around as long as they have. I saw them a few weeks ago and they put on a great show. They have two of that humongous stage setup... The next venue is being put up while they're playing at the current one. That is a huge investment in their touring. Watch any interview with Hetfield (especially the recent Joe Rogan one), he's as down to earth, funny and cool as you'd want any rock star to be.