Good news for consumers (at least in the US) today with the announcement
by the EFF that Universal Music has lost a federal court case in which they were trying to claim that they had perpetual ownership in promotional CDs when someone tried to sell some Universal promo discs on eBay.
While this isn't gaming related, it's good news for everyone because it sets a strong precedent in the area of first sale doctrine law. This basically means that if you buy a CD (or a video game, or a piece of software) you should be able to sell it further down the track if you decide you don't want it any more.
In the digital world, the incentive for content owners to try to block this is obvious - they want to stop you from being able to do this with EULAs and other licensing schemes, specifically so they can make sure no-one can buy second hand copies of their works - leading to more sales.