If you were a member of a band that was on one of the hottest rolls in rock history. Sold out shows, platinum selling records, money flowing in from merch, gigs, endorsements. Would you want to just say "Ah heck I quit." Well that's what guitarist John Frusciante did. In late 2007 with the band at one of it's high points. John Frusciante said I'm not taking a break, I'm leaving the band. “By about four months later I was so excited about quitting the band I didn’t even want it to be a two-year thing any more.” http://www.classicrockmagazine.com/news/john-frusciantes-excitement-red-hot-chili-peppers/

Now he says that he never liked being a performer any way. And he's done with the rock music industry. I suppose it takes a new perspective on life to walk away from that kind of fame, fortune and rock and roll.