The thing is just that one who was talking about the NPD sales said that Fallout 3 probably did so far not sold more then 2 Million copies aprox. while shipping out 4 million. Now I am not a genius in math nor do I really know if it is succesfull for Bethesda or not. But just from how I imagine it it doesnt seem that good. Well I guess to see if it was really a great success one has to wait some time.