Yes, but they do all this "free" or "cheap" things in everywhere, but when they come here, they go to a very small place, called "Luna Park" with capacity for a maximum of 16k people, when the can go to other places like the river stadium that can hold almost 80k people, they can have cheaper tickets and earn the same quantity of money, or more.
When pearl jam came here, they had tickets for $60 (almost USD 15)... and also they did 2 shows! and in a stadium!.
Radiohead is like Zack de la Rocha from RATM, they speak about freedom, socialism, etc, and then you see him driving down his bentley to his mansion...