grigory writes: GameStop's business model depends on a healthy flow of used games: incredibly "[GameStop] enjoys a 48 percent profit margin on used games". Game publishers do not see a cut of the secondary sale because it falls under the first sale doctrine.
Now, some publishers and manufacturers want a piece of the pie. "One marketing executive, who did not want to be identified for fear of angering GameStop and other retailers, said the used game sale market is still depriving publishers of money because it gives consumers an all-too-easy alternative to buying a new game."
Interesting picture of companies fighting for your business, and (suprise!) complaining about being left out of the money stream.