You misunderstand my post i think. The original argument if i understood it correctly was a criticism against Ninendos recent investment in R&D in Japan. The argument was that if Nintendo wants to appeal to the hardcore with WiiU then they need to invest in western game developement houses to create games designed more towards western tastes. That was the premise i rejected, as for one all hardcore gamers =/= western gamers, as well as the fact that Nintendo's own existing game franchises have more global appeal, are generally as critically acclaimed as the best western titles and they have proven themselves as commecially successful if not moreso than the majority of western made games.
I don't think your post was relevant with regards to the original discussion, as non of the games you posted are games designed to appeal solely to western tastes (or even hardcore, however useless and ambiguous that term is), regardless of who made them. They are all games that have a much broader appeal than the vast majority of modern games designed for the "hardcore" western gamer.
I also wasn't saying that Nintendo didn't need to develop second party relationships with western devs either. Only that they don't need to buy them. Of course it would be in their interest to strike deals with exceptional development partners, but where those partners are based and of what nationality is entirely irrelevant. Being a western dev doesn't automatically make any developer more successful than those based in japan or anywhere else, and so i reject that premise (not saying that's what you were purporting dobwal).
My point was that Nintendo's first party development houses are solid and great at what they do best. If Nintendo as a publisher desires to branch out away from their area of competence and make the super hardcore games with external devs then they don't need to buy them. Those devs don't have to be western also. But Nintendo would also be perfectly fine if they stuck to the games like mario and zelda that they make in house, but just brought them into the modern era through the advancement of technology that they were lacking with the Wii(OG).
Anyhoos, back on topic. I'm intrigued as to whether Nintendo's R&D house investment is more geared towards improving the software development platform for the WiiU, as well as creating various game engine technologies for their first party studios to employ. If so i think that it would shed some light on how far along the development of the new WiiU platform actually is... i.e. not as far as we may have been led to believe by all the Pre-E3 rumours.