To help the victims of the recent earthquake and tsunami in Japan, Team Fortress 2 developers Valve had a little hat sale. It started well. And has ended even better.
A total of $430,543.65 was raised by Team Fortress 2 players spending a bit of cash on some hats for their characters, which either says a lot about the size of TF2's player base, a lot about the appeal of hats or a lot about both.
There's also a lesson in this: developers, if you want PC gamers to stop pirating things and start spending money, don't sell them games. Sell them hats.