I like where Jack says:
Guarnieri gives the example of a recent AC/DC themed pinball machine. "If you didn't know any better, you might think it was built ten years ago. There's nothing about it that says it was built yesterday."
It kind of reminds me when a critic once said to Angus Young that seventeen ACDC albums all sound the same. Angus then said to him "that's eighteen albums".
Jack, what you said is precisely why ACDC is still a good seller.