I made myself a mixtape off of American Top 40, and loved most of those songs: J. Geils Band's "Angel is a Centerfold," Joan Jett's "I Love Rock & Roll," and "Pac Man Fever," by whoever sang "Pac Man Fever." I wasn't a big video game kid, though, except maybe for Donkey Kong, Galaga, and Zaxxon, none of which I was very good at. I liked baseball when I was 10, mostly because of baseball cards, but lost interest around age 14. I haven't been back to sports since, though I will occasionally check the MLB stats in the paper a few times a year.
I also liked Vonnegut, Bill Cosby, Madeleine L'Engle, Omni Magazine, and the Chris Claremont/John Byrne X-Men, all of which I still like. One thing I liked then that I hate now, though, is the book Number of the Beast by Robert A. Heinlein. I found a copy in a used bookstore last summer and remembered it fondly, so I tried rereading it, but it's basically just 500 pages of topless women reciting Heinlein's weird libertarian rants in a time machine.