Maybe you're right, maybe they need to get the price down by any means necessary.
That's so unrelatable though. You're not going to be playing that in an airport or in a coffee shop. You'll be playing motion control games in a room (whether your house or a party or whatever) and that room will probably have a TV.
You can literally have a cheap mini webcam for $2 including shipping from China. What would it cost Nintendo to include it? 30 cents? It would be silly not to include it. All it takes is the next "killer app" like Minecraft to make use of the camera and you're fucked.