You can't compare a prequel (MGS3) to a sequel (Halo 3). Its a fact that Prequels never sell well compared to a sequel. (Devil May Cry series) MGS3 was designed for the more hardcore MGS fans, and would never reach MGS2 like numbers. Halo 3 is the last installment of the series, and anyone with a 360 would buy it. It won't make sense to compare these two games.
I'll take the case!!!







