"You might not think about Valve's Steam distribution method much. If the first time you came across Steam was when you installed Half-Life 2, from the DVD, then you would have good reason not to. Mental scars like those take a long time to heal. As you sat there all day, trying hopelessly to connect to Steam for verification, or sobbing hopelessly because you didn’t read the "Requires an internet connection" disclaimer, you should have taken heart at the suffering that had already gone before you."
Read more at Bit Tech.