Yes I did just see Terminator 4 Rise of the Machines but that is not the only reason for this subject to pop up. The reason is that Nintendo is finding itself saturating the market. Much like apple is having trouble with the iPhone /iPod saturation, most of the people that want an Wii or DSi have it already. This is the problem Apple has (dstti).  If this trend continues Nintendo can expect a large drop off in sales which means a lot of extra products floating around that they will need to take a loss on and continue innovating.