Oh, so the Wii wasn't about "video games played on a TV using physical controls on a handheld device"?
Also, the very first iteration of the Famicom back in 1983 had a damn microphone built directly into controller 2.
Useless gimmicks have always been part of Nintendo's DNA.
And since you mention optional accessories, Famicom 3D System says hi.
Damn Nintendo for forcing that gimmicky d-pad upon me!