NSMB2 was Nintendo dipping its toes into the water. It'll be slow, but if it was successful, I'd expect other big titles to show up there in the future. Hell, perhaps we can be lazy fatasses and not bother to go to launch parties for games like Pokemon.
As for bandwidth/server costs, I'm not sure how that compares to say, producing and shipping a physical product (typically overseas) and making deals with retailers.
As for bandwidth/server costs, I'm not sure how that compares to say, producing and shipping a physical product (typically overseas) and making deals with retailers.