There is a Save the Arcades promotion going on until the beginning of October. You play a cheesy game (with cheesy 80's video game soundtrack). Your points get donated to one of four old-school arcades. The arcade with the most points gets a cash prize to help them with upkeep and acquiring new games.
Here's the site.If you are not sure where to donate your points, have them go to Star Worlds Arcade. I go there a few times a year. It's a little arcade about 30 minutes from the Chicagoland Show. They give 5 tokens for a dollar and most of the games run on one token!