Dangers of the Cloud

Even as Steve Ballmer was talking up Cloud Computing today, I fell victim to it.  All I wanted to do was play a little Modern Warfare 2 to blow off a little steam.  Unfortunately, Steam seems to have been down all afternoon.  Their community sections says that they are down for maintenance...but should their janitorial services keep me from playing a game I "own"?

Its been hours now...I'm still waiting to play...and frankly, I'm a bit steamed at Steam, and the whole vapor cloud.