Nintendo flopped at the N64 and the Gamecube and need to make up for the losses made by losing subsequently in 2 generations, staying afloat thanks to the Gameboy brand. That's common knowledge. The Wii and the DS were weak specs-wise because Nintendo couldn't afford to make more losses.This recent generation was about content. The sad part was that this industry is filled with blockheads who subscribe to the closed-minded mentality of "MOAR graffix and moar blood is moar fun!" Nintendo made it clear that this generation was about content when they decided not to play the graphics game and it worked!
Specs are not all about "moar grax and blood", and you'd know that if you tried to develop anything for the DS.
If it was all about the content, then the Wii certainly lost, since most games flew right over it, leaving bad, watered down ports in their path IF Wii users were lucky. Far Cry Vengeance, anyone?