At a late-teen, I realized that mass-media offerings - TV and radio, news about celebrities, boxed sets of 'favorite hits' - were skewed to older people's expectations. Since then I've noticed that once celebrities die, stories about them tend to fade away. I guess the same happens with generations. (The market for new Elvis box-sets is probably not worth pursuing.)
(Notice that Randall left THE CHIPMUNKS out of that chart? That's a tell!)