Nintendo's consoles don't sell western devs' games well, unless they are casual games (Just Dance, etc. etc.)
Luckily, Nintendo only need themselves and Japanese 3rd party devs and they can support a console all by themselves. This is good news on the long run, as Nintendo just becomes more and more self-sufficient.
They do need to learn to cater to the market that western 3rd party devs are able to attract though, on the long run.