I think if Metallica out performs AC/DC in sales then Kiss would be mad not to take advantage of some money over no money to have a 2nd pin. At least Kiss with there costumes adds some creativity to a game like Metallica's artwork over some other possible bands which could be seen as quite bland in appearance.
And agree with CC, Hendrix pin could be a bit funky, given the reggae background, I bet if it paid out in joints it would get the teenagers in
