What makes baseball a game?

Jack’s Winning Words 10/8/13
“When baseball’s no longer fun, it’s no longer a game.”  (Joe DiMaggio)  Joltin’ Joe was batting .350 and was a highly paid player when he retired, saying,” baseball is no longer fun.”  I suppose most of us would not classify our job as fun, or as a game, but I really did enjoy my work.  Maybe you can say the same about your occupation.  Have you heard the expression, “The game of life?”  What makes life fun for you?    ;-)  Jack