Much of the food described here I could not even swallow, that much I like it... It all belongs to a kind of cooking that we Germans would label as "rustikal". It has not much to do with real German cooking as to be seen by daily routine in german kitchens throughout the country. We don't eat Würstchen und Sauerkraut, Jägerschnitzel und Bohnensalad all day long. Most people even do not like Sauerkraut and Bohnensalat.
Oktoberfest last but not least is an event for tourist (and Bavarian natives

), like dancing Indians in America with costumes and all - who stop dancing when the bus with the tourists is gone again. Lufthansa even currently has stewardesses dressed in Dirndl on some flights to NA. The rest of Germany maybe may look with an amused eye on the Oktoberfest, but almost noone would say he considers it to be representative for Germany.