Only two things are cheap in Brazil:
1 - human life, and
2 - granite kitchen countertops.
So unless you are seriously into home improvement, I can't recommend Brazil as a tourist destination, not even for the World Cup, nor the Olympics.
Rio de Janeiro is like the Wild West, with added crack cocaine and AK47s.
The state where this referee was beheaded, Maranhao, is in the dirt-poor north of the country, and is run by politician Jose Sarney as his own private kingdom. A total scumbag, he makes Westminster MPs look like saints.
Rant over!