To Play Devil's Advocate
Yankees are playing the Red Sox in New York on a sunday afternoon in August:
You will see guys dressed up in Yankees uniforms, wearing mits, keeping their own box score at Yankee stadium (Yankee convention center). They are playing fantasy baseball (D&D for jocks). If not at Yankee stadium they meet at bars (conventions where only Enterprise cast members are appearing) to watch the games and celebrate them together, again dressed in Yankees hats, shirts and even uniforms. The Yankees greats are revered and anyone who is lucky enough to have met A.Rod, Jeter or a former great is accorded a place of honor. Some guy with a Yankees tattoo will show it off with pride. The players themselves are treated as hero's and legends. Both have their greats: Babe Ruth (Shatner), Mickey Mantle (Stewart) and Derek Jeter (Pine). People travel to Florida for Spring Training and around America to see them play (go see a really big convention in LA)..... and if any of those Red Sox (Star Wars/Lord of the Rings) fans show up talking about how great they are and their pantheon of players (Star Wars/ Lord of the Rings cast) are there's trouble.
Good thing baseball is cool.