A lot of people blame Steam, but I'm willing to accept this risk. I didn't buy games before Humble Bundle and Steam, and if it all collapses, I'd probably pirate it somewhere or get it off sites similar to Home of the Underdogs.

The licensing allows them to do things like this, but frankly, the odds of it happening is extremely low, like 1 in a thousand, and the lower prices make up for the risk.