Wow. Just 10 years ago, when Sander Antoniades and I were pitching the idea of Game Developer magazine to our publishing company, we had to have pages of references showing that videogaming was a multibillion industry because no one believed it.
\$100M in a single day is rare air, even for movie blockbusters. The Bungie division of Microsoft only has 65 or so full-time employees (including the guy who wrote that “We are Flintstones Kids...” commercial jingle) and Christmas Bonus time is only a few weeks away. I hope they all get thick envelopes of cash.
By the way, if you're a young programmer and thinking about getting into the videogame programming business, think about this: It's just like Hollywood, but without beautiful women or fame.