Everybody. Women, men. Children, adults. Men, women. Very broad demographic.
That's why it's so difficult to get and something consumers have failed to understand in their frustration to get Wii hardware. Before, to nab a system, you just had to compete against the early adopters and peak Christmas rush. But the demographic for modern videogame units is much more narrow than that of the Wii. You're not just in competition with males between the ages of 12 - 28, but children, the elderly, females, boys, etc.