Jay Honeck wrote:

The Xbox 360 has sold badly. Less have been sold than even MS expected

That may be the case, but they've still sold millions of the damned
things, and they are EVERYWHERE. Walk into any gamer hangout or
computer store in America, and half the store will be X-Box console
games. The other half will be Playstation and Wii (which, although up
and coming, still hasn't displaced the Big Two), with a tiny little
corner devoted to PC games.

Sales figures of the boxes themselves are somewhat different:

http://www.mercurynews.com/opinion/ci_6331086

"In the first five months of the year, Nintendo has walked away as the
winner, selling 1.73 million Wiis in the United States, according to market
researcher NPD Group. Microsoft has sold 1 million Xbox 360s and Sony has
sold only 665,000 PS3s."