I get the feeling we all under estimate how much time and money capcom put into DD and how they probably didn't come anywhere near recouping.
We want a sequel, but can they even afford to do that?
Naw I think I remember hearing that Dragon's Dogma was decently successful. Not a runaway hit, but it was decent. Maybe someone can find a particular statement from Capcom because I know there is one where they are mentioning the sales of the game.