When Is It Too Old To Rock?

If age is just a number, then why so much attention do we give it to aging rock stars? With all the bands from yester year still plugging away when is it the right time for a fair well? My way of thinking is as long as you can still bring it, and can play well and you keep it fresh why not then keep rocking out! Now with rock comes the hideous act of touring. Just ask Brian Johnson from AC/DC about he importance of being able to hear on and off stage. That's why he isn't touring now. Black Sabbath is on their fair well tour after putting out a fantastic album. My boys in the Crue final called it a day. The bad part of any successful band is that sooner or later when to take that last curtain call. Some bands like KISS for instance have done fair well tours only to come back around and around. I love all these bands and respect them all, but one thing is for sure rock n' roll is the hardest addiction to overcome!