help sony and microsoft to sell even more consoles to have an even stronger competition when you release a new console against them. this sounds really easy to achieve.
another problem is that second and first party developers are on average much stronger as third party. nintendo would be third party then and you can't expect that they will retain the quality they have so that their franchises could stop to be considered as the best in their genre. that would mean that less people would be interested in them which would make it even harder to tell people "hey, we made the games for xbox and playstation but you have to buy a nintendo console to get the next games"







