https://www.gamespot.com/articles/nintendo-switch-set-in-japan-offers-stripped-down-/1100-6459154/

Nintendo has announced a new Switch set in Japan aimed at encouraging players to own more than one per household. The stripped-down version includes the Switch console, Joy-Cons, and Joy-Con straps, but leaves out all of the usual pieces meant to work with the Switch in TV mode: the dock, HDMI cable, and Joy-Con grip.

Siliconera reports that the "Second Nintendo Switch Set" is a My Nintendo Store exclusive in Japan for the time being. The cost difference is pretty substantial at 25,000 yen instead of 30,000--a difference of about $45. No plans have been announced to bring this option to the West.