Video games are sexy. People need to be aware that GNU/Linux is more than just something to drive your webservers... A lot of people (myself included) feel that video games are a major factor in getting GNU/Linux to the masses. I can't count the number of people that have said, "Thanks for porting [GAME X]! It was the only reason I kept a Windows partition around!"
Quoted in Robin Miller, "LinuxWorld Exhibitors' Responses to Slashdot Questions" Slashdot (2003-01-27)