http://en.wikipedia.org/wiki/Budget_of_NASA http://en.wikipedia.org/wiki/China_National_Space_Administra...
Not to diminish the significance of this accomplishment, but the Chinese space program is still in a catch-up phase, which allows them to make significant advances quicker than if they were at the frontier.
I'm certain SpaceX could make a dollar go a lot further than NASA can. Perhaps the Chinese even further.
Some of the comments above are not very well-informed.
In particular, most of the local government is in great debt, tens of billions in some cases. The Central government has a lot of debt too. Just because there is a pile of money in reserve doesn't actually make the government wealthy.
Doesn't have to be.
Curiosity is usually described as a "rover." In-between commands sent from mission control, it operates autonomously.
Until today, the last rover to drive around on the moon was the Soviet rover, Lunokhod 2, in 1973.