The reason why we don't put CD copy protection on our games isn't because we're nice guys. We do it because the people who actually buy games don't like to mess with it. Our customers make the rules, not the pirates. Pirates don't count. We know our customers could pirate our games if they want but choose to support our efforts. So we return the favor - we make the games they want and deliver them how they want it.
This is the only thing I really wish other game developers/publishers would get through their damn heads.