It is estimated that China will spend $42 billion to host the Olympics. To put that into perspective, that is almost three times what Greece spent on the Athens Olympics and roughly the cost of Hurricane Katrina reconstruction. That infrastructure build out has certainly been a major boost to the Chinese economy, but China plans on spending even more on the 2010 World Expo in Shanghai and the Sichuan earthquake reconstruction is expect to cost $140 billion. The Chinese building boom is going to last for a lot longer.