I don't know about grading things like this. Nintendo titles always sell more because they sell for a whole gen and are the only one in their franchise. While a title like Uncharted has 2 years before a sequel appears and people start buying that one instead. I mean Mario Kart DS is still like $50. I'm not saying they would sell as well as all the Mario games, but Uncharted could reach 10m if they released only one on PS3 and kept it at the forefront.








