I would buy it but no it should not be one. There following is not that huge in the US obviously they have devoted fans. There songs are too long to be used for modes, they would have to be chopped up. Great idea but I bet we see Van Halen, Ozzy, Motley Crue and a few others first.
Just think about bands that were huge successes in metal and rock and there income lets say is not what it used to be. Those are the bands that will be next.
Pink Floyd and Led Zepellin and Hendrix would be amazing but I doubt anyone can secure these license because of cost and friction between family who owns the rights or between living bad members.
Iron Maiden is there next music pin and I will have my Trooper LE DAMNIT! Oh the cabinet of the translite, and Eddie being eddie all over the playfield. "done deal"