And I use a drawing tablet for Osu (or did, but I haven't played in several years). I've also got a dance mat that came with Mario DDR back on the GC. There are quite a few home rhythm game peripherals that go beyond just a keyboard, controller, and mouse (touch screen is also worth noting). They usually come with an additional cost, but it's generally significantly less than paying to use an arcade cabinet would cost.
Arcades are just where you end up finding larger, more robust, and/or more complex input systems, which don't necessarily lend themselves to home use. Even then, though, if a game is popular enough in arcades, it's not unheard of to see it adapted to home use, as happened with Beatmania and DDR once it was confirmed that there was enough of an audience that producing the peripherals wouldn't end up being a waste.
This is my signature. It exists to keep people from skipping the last line of my posts.