Sega is plenty smart when it comes to software (i.e., games). When it comes to hardware, they haven't done anything smart since the Genesis. That being said, what makes Sega REALLY smart is dropping out of the console market to concentrate on their strength, games.
My plan is to wait until the LoZ: Ocarina of Time game comes out for the 3DS (summer 2011) and then buy both the system and that game. I do have the right to change this if the Mario Kart game comes out first though.