Ars Technica - Why on-disc downloadable content isn’t the crime it’s made out to be.
So let's all settle down. Just because a portion of a game disc is locked away as DLC doesn't mean you're getting ripped off. Both games and DLC are still value propositions that have to be judged on their own merits, regardless of whether they're available on disc from day one or not. You're not entitled to free content just because it's on the disc, or because it's taking away from what "should" have been in the core game. Don't like it? Don't buy it!