
Other than the amazing taste, I think it also signifies the changing of seasons to me. Summer quickly turning into fall as the weather cools and leafs change. Baseball pennant races are tightening and the post-season is nearing. Television is quickly being overrun by football most of the week.
Quick Octoberfest (or Oktoberfest) facts:
It is actually celebrated in September
The largest selling Octoberfest beer in the world is not German but the Sam Adams Seasonal Brew