I am astounded that they have made Metallica and AC/DC and still not Iron Maiden (yeah i know there an old one called that ). Iron Maiden has so much more themes, artwork, concepts etc to make into a pinball machine, as opposed to metallica, ac/dc and kiss. Im not saying the themes to metallica and acdc havent been implemented to their best capability, its just that there is so much more going for with Iron Maiden.
But I guess it is because Iron maiden arent that big in the US.