Truthout.org published a great article discussing what you can buy with $1 billion.
Excerpt: "Some Wall Street types (and others) make over a billion dollars a year – each year. How much is a billion dollars? How can you visualize an amount of money so high? Here is one way to think about it: The median income in the US is around $50,000, meaning half of us make less and half of us make more. If you make $50,000 a year, and don’t spend a single penny of it, it will take you 20,000 years to save a billion dollars. . . . (Please come back and read the rest of this after you have recovered.)"
You can read the full article here .