Hmm lets see I believe the paying fan base exceeds the piracy fan base. With the systems I mentioned they had more pirates than buyers. But as to the original quote ... a pirate has put in zero cents where the original buyer of the software has put in some money into the pot and other rebuyers...
Yes there is a difference, when you purchase a game you are obtaining a license to use it based on the copyright agreement between purchaser and publisher. You are buying permission to run their program. If you sale it to gamestop you are selling your license. If another person comes they are...