Why should this World Cup be any different? A regular bottle of water cost about R$2,00 retail on the streets.
Inside the stadium, FIFA pricing = R$6,00. Looks like Sepp Blatter is trying start a riot inside the stadium as well.
Drink up before the game, but don’t mess up the hotel lobby.
UPDATE: Yow! The above is low-cost pricing according to this report. Come to think of it, it may be. I still remember the $10 Cokes at USA ’94.