it expands to any game with an EULA, which most games have, but i believe blizzards EULA's for WoW are probably a bit more specific than the ones slapped onto most videogames. i think the normal EULA on most videogames is similar to the ones slapped onto like DVDs and the like, i.e. for private, non-commercial use yada yada.
Edit: and to concur with what ethan said, this is only currently binding in the area covered by the 9th circuit. this could conceivably come up in other federal courts with different results until or unless it's ruled on by the supreme court, which may happen if the ruling in another circuit is in favor of consumers because i can see blizzard being real dicks about it.