Damn some of you are stupid.
But anyways, I don't know your definition of old. Like do you mean Billy Holiday old, or Micheal Jackson old?
Before the 50-60 music was made for the purpose of being music. After that, music started to become more and more commercial. Though some artist still do it for the music.
I've personally met both Micheal Jackson and Justin Bieber, they're both great people, and just enjoy music. The money they got is just handy.
So when it comes to choosing, there's no real option. I choose both.