Skyward Sword is a pretty nice compromise, though. It's a midpoint between Wind Waker and Twilight Princess: it's got the lightheartedness of Wind Waker, with the more grounded plot; the chirpy, upbeat melodies, with the dramatic orchestrated boss pieces; and a lightly cel-shaded, cartoonish look without being too cute or too "mature."
This is clearly Nintendo's attempt to closer align sales between the regions. Zelda usually has nice legs, often selling around 3x its first week sales. I guess we'll see how they've done in retrospect, once the holiday and opportunity for word of mouth have passed.