Yeah man, I feel ya. Europe does definitely offer some of the best festivals/tours. I guess because bands don't get over there too much, so when they do, they make it worth while.
In regards to festivals I think it's just because so many of our festivals are so big, notorious and a big part of music history. The number of bands wanting
to play them let alone being asked and fitting it into schedules is major.
I love our festivals so much, makes me proud everytime I'm at one and part of a crowd.