Formula 1. When you drive a different car for each qualify / race and after that the engine is no longer usable it does raise the costs. not talking about development team , research and the number of people involved in a team. Golf comes nowhere near that. Don't think about revenues... it's about expenses.
According to Answer.com, the most expensive sport is Formula 1 racing... Some might agree and some don't. But I guess, they have a point.
Golf is sport for rich persons. Anyone can play Tennis but by playing good tennis you will become rich Cricket is gentlemen play
all kinds of sports can be expensive depending on our own dir, but I think cycling can be an expensive exercise
Climbing/mountaineering, I've paid about £1,000 for the basic necessities i need not to die. Then if your going high you need to spend hundreds on clothing.
i think Yatch Racing, Race Cars, Polo, Aerobatic planes and Golf these are most expensive sport in the world.