Guitar Hero [1] and Rock Band [2] were hugely successful [3] and required bigger and more expensive accessories than a simple gamepad.

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[1] https://en.wikipedia.org/wiki/Guitar_Hero

[2] https://en.wikipedia.org/wiki/Rock_Band

[3] Guitar Hero III was the first game to reach $1 billion in sales https://arstechnica.com/gaming/2009/01/guitar-hero-iii-first...