On the one hand, yes, Westernized RPGs and free-form games have basically make the more linear story-driven games Japan loves more of a persona non gratis in the modern environment. On the other hand, so what? You make a good game, people will buy it. You make a crap game, people won't. Mario is an Italian plumber who beats up dinosaurs and sentient mushrooms, for whom mushrooms, technocolor flowers, and stars with eyes on them are his chief weapons. When you take two steps back, it's a damn weird concept, but it worked because the gameplay was so damn good. Bring to the market games that rock, and the market will follow. If that means evolving your model, then evolve it. It's not about East or West, its about how much fun we get out of our 50-60$ investment, plus time devoted to playing it.