I think most of it was timing with me...Cubs in 1984, Bears in 1986, Jordan showing up in the 80's. My dad was and is an enormous fan of all of those teams, and his excitement over what was happening from '84 onwards just kind of naturally drew my brother in (and we were living overseas '84-'97 so we'd be sent tapes by friends and family that were filled with games, so we watched those all the time because there weren't many other options), plus that's when we started playing sports ourselves and realizing there things like baseball cards (and shitty football and basketball cards, too), plus Nintendo showed up and we were nuts about the sports games that came with it, too.