Amazon is selling Wii U's at a higher price than anywhere else. The Wind Waker Bundle and the 32GB Black Deluxe Set are selling for $328.88 and $339.99 respectively. Those bundles are being sold for $299.99 at other retailers.

Amazon itself doesn't sell Nintendo hardware. The prices you are seeing are the prices set by third-party marketplace sellers.

@thematrixonline: I haven't checked recently, but when I looked a few weeks ago the bundles were all through other sellers and not directly from Amazon. It's almost like there's some sort of supply issue that is only affecting Amazon.

EDIT: After a quick internet search, apparently there's some sort of beef between Amazon and Nintendo possibly related to the DS hinge problem that has led to Amazon no longer selling some Nintendo hardware. Super weird, especially since the 3DS seems to still totally be for sale through Amazon.

The 3DS was just put back on Amazon last week, up until then it was only sold through 3rd party sellers. I think this is just a case that Amazon is being a little choosy with what they carry from Nintendo (they are not selling the zelda 3DS xl bundle as of yet) as they start selling those products again.