Given the fact that it'd still be more expensive than most of Gran Turismo 3's sales were made under, it'll do better - maybe an extra 1.0-1.5m copies if the price was $300 before GT5 launched in at least 2 of the 3 major territories.
Also, maybe I'm not understanding the 'casual' side of GT4, but it launched with 2.5 million units in it's first week, and sold 50% of it's lifetime sales in 4 weeks. I really don't think that's 'casual'.
Back from the dead, I'm afraid.







