Supposing cost them 250$ maximum for the switch package(and they could sell regular switch at 250$ without loss), I think they cold sell for 200$ without dock, cables and grip, just the joycon and tablet without loss. And it would put it at new 3DS price point.
I think a home console switch, without joycon(pro controller instead), screen and batery could be at 150$. but notice you wouldnt be able to play arms, 1-2-switch, touch screen games, so i dont think they would do that.
even that they could sell at this price, they wont, because the demand is still high. Seems that Nintendo only diminish the price only if it struggles to sell the expected(unless they low the production cost a lot).