I do not know why MotorStorm 2 didn't do better than MotorStorm 1, considering they improved everything. But it was released in the same quarter as Wipeout HD, Pure and Baja, and many people complained about the demo...
With Uncharted, there is the possibility that it will follow the same path as Jak, where the original sold more than the sequels, even though each one improved on the previous game (assuming the VGChartz totals are accurate):
http://vgchartz.com/worldtotals.php?name=jak&console=PS2&publisher=&genre=&minSales=0&results=50&sort=Total
I'm hoping that it does sell better, so that there will be an Uncharted 3, as I really enjoyed the first one.







