xAD's kinda got a point. Just reading through the EULA just now, and you don't buy a game you buy a "subscription". Interesting choice of words. I'll continue reading and edit when I'm done.
"YOU ACKNOWLEDGE AND AGREE THAT YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY DISPUTE WITH VALVE WITH REGARD TO STEAM OR THE SOFTWARE IS TO DISCONTINUE USE OF STEAM AND CANCEL YOUR ACCOUNT".
In other words, if anything bad happens, you've agreed to close the account. Also, all-caps, Valve? Really?
"In the case of a one-time purchase of a product license (e.g., purchase of a single game) from Valve, Valve may choose to terminate or cancel your Subscription in its entirety or may terminate or cancel only a portion of the Subscription (e.g., access to the software via Steam) and Valve may, but is not obligated to, provide access (for a limited period of time) to the download of a stand-alone version of the software and content associated with such one-time purchase."
If I'm reading this right, Valve retain the right to remove the game from your Steam library and don't have to do anything about it.
Kinda sinister overall, really.