I don't know what more Nintendo fans could've done. This tells me that Nintendo of America could care less what the fans are clamoring for. Like it's been suggested above, NoA should at least release a limited edition of Xenoblades since Europe already localized it. Does Nintendo really care about its hardcore audience? I think people should definitely buy as much Nintendo merchandise used for a while...
Nintendo's "hardcore" audience didn't buy Sin & Punishment 2, Excitebots, Metroid: Other M, etc.
Sin & Punishment is a niche franchise within a genre even
more niche than the JRPG (bullet hell side-scrolling shooters. Seriously, this franchise is so niche it's a popular genre on the
Xbox 360 in Japan!); no one knew Excitebots even
existed until just before it came out; and Metroid Other M is an extremely troubled (but still decent) game. And Nintendo of America never did figure out how to market to people beyond the casual Wii Fit audience.
Like MegaByte said, these games are in an entirely different
league than these Japanese Role-Playing Games. One's a game that Nintendo was foolish to commission in the first place (though I appreciated it); another Nintendo was foolish not to do
any PR or marketing on; and the last is a AAA Nintendo 1st party franchise title that Nintendo was foolish to put in the hands of a man who didn't care that he was killing his own fanbase. Other M is probably the closest to these games in terms of production values, and it didn't fail because there wasn't a market for it, but because it just wasn't
that good of a game (especially when it comes to the writing).