With exception of the ticket - which can cost you anything between 150 and 250 Dollars
(depending on when you buy it) - everything is free at Burning Man. Giving or accepting
money in exchange for goods or services is strictly prohibited (again, there is one
exception, which is the Cafe and the ice vending tent in the Center Camp).
People are usually very generous, and there are many bars and kitchens where one can have free drinks, food or ice cream.