All of them seems to involve ordering directly from manufacturer.
However I can imagine something like Lego and Ninteno making a package that is designed for children to learn from.
A self-contained user-programmable video game device probably needs more support and offers less recurring revenue opportunity than mass market game consumption platforms.
It's a terrible thing for a owners of a business to turn a reliable consumer of its products into a happy frugal maker.
So, they shouldn't be in dire financial straits if they don't sell games, but it sure isn't the winning strategy.
Nonetheless, if the expected profit from each game-maker device is less than the profit from each play-only device, why would a manufacturer of the latter make any of the former?