No, you don't own it: Court upholds EULAs, threatens digital resale (arstechnica.com)
In short, if the End User Licensing Agreement states that you are simply licensing software instead of purchasing it (which a majority do) and the license states that you are forbidden from selling/transferring the license, then it is illegal for you to do so.
Among other things, this means that you would be forbidden from selling software on eBay or trading in games at GameStop.
You can pretty much guarantee that all future games will include language in the EULA regarding this. The only hope at this point is if the Supreme Court agrees to hear the case and overturns it. Otherwise, bye bye GameStop/CD TradePost/etc.
In short, if the End User Licensing Agreement states that you are simply licensing software instead of purchasing it (which a majority do) and the license states that you are forbidden from selling/transferring the license, then it is illegal for you to do so.
Among other things, this means that you would be forbidden from selling software on eBay or trading in games at GameStop.
You can pretty much guarantee that all future games will include language in the EULA regarding this. The only hope at this point is if the Supreme Court agrees to hear the case and overturns it. Otherwise, bye bye GameStop/CD TradePost/etc.