]There was a time when Nintendo made powerful systems for generations before the Wii.[/B] It's weird to see some so suspect even though Nintendo is rebranding and ditching the Wii brand which also means ditching that low power strategy.
This fallacy is getting old... Nintendo has ALWAYS had a policy of withered technology (older tech that can be produced cheaply and make a profit). It wasn't Nintendo that changed it's policies, it was everyone around them that did.
The NES and SNES were based on decades old hardware, the gameboy same story. The gameboy color nearly a decade later was still using the same hardware in the gameboy just more ram and a double clocked processor. The GBA, while using a modern for the time ARM7 processor, was severely gimped (16mhz, compared to my PDA at the time which was 233mhz, which I upgraded to a 400mhz one before the GBAs end of life). N64 used modern tech, but it was gimped heavily by cheaping out in video RAM and other elements... so much so that it was one of the first systems to be emulated by PCs at full speed while the console was still out!
The ONLY system that comes close to matching this "nintendo used to make powerful hardware" is the gamecube, which was modern (again, for the time) hardware, that was well balanced between graphics and cpu and RAM. It safely outperformed it's chief rival (the PS2) handily and even traded blows with the much more expensive and powerful X-box (we all remember the fur shader debacle).
Compare Nintendo at the time to it's competitors and you'll quickly see that Sega and Sony ALSO followed the same design philosophy up until the original X-box... This is because Microsoft changed the name of the game to one of truly 'powerful' systems and Sony needed the high end tech to power their upcoming blu-ray players that could also play games (the PS3).
Nintendo kept on the same path it always had of withered technology... so if Nintendo IS releasing hardware that outshines it's competition, even a couple years late, it's still a pretty significant shift in how they've done hardware up until this point.