For Germans, Oktoberfest is more for families and older people — a place where businessmen meet for lunch. When it comes to foreign tourists, the stereotypes kind of fit. English people tend to brawl more than others. It's not uncommon to actually see glasses flying through the air. But in my experience, I'd say people end up quite the same when they get really drunk. Doesn't matter anymore where they're from.
I suspect they earn every single Euro and Mass they get!