Haha, yeah.I remember last gen (ps2 days), on the forum i used to visit prior to Gaf, "casual gamer" was a term (often pejorative, unfortunately) reserved for those people playing stuff like FIFA, Need For Speed, GTA and nothing else (what now are most CoD players, basically).
So it's kind of hilarious.
With my friends when I was younger, "casual gamers" were people who only played sports games. No clue why, that's just what we decided it meant :lol