I just checked eBay, and there are a few bundles having reached crazy offers, but the vast majority of overpriced offers are either "Buy it now" or with zero bids, and it's already possible to find both bundles and stand-alone Kinects under their list prices.
http://video-games.shop.ebay.com/Systems-/139971/i.html?_trkparms=65:3|66:2|39:1&rt=nc&_nkw=kinect&_catref=1&_dmpt=Video_Games&_ipg=200&_trksid=p3286.c0.m14.l1514
http://video-games.shop.ebay.com/Games-/139973/i.html?_trkparms=65:3|66:2|39:1&rt=nc&_nkw=kinect&_catref=1&_dmpt=Video_Games_Games&_ipg=200&_trksid=p3286.c0.m14.l1514
http://video-games.shop.ebay.com/Accessories-/139969/i.html?_trkparms=65:3|66:2|39:1&rt=nc&_nkw=kinect&_catref=1&_dmpt=Video_Games_Accessories&_ipg=200&_trksid=p3286.c0.m14.l1514
Edit: just checked better, the crazy priced ones haven't reached those prices through offers, they are either "Buy it now" or zero bids too, some sellers are just asking for those prices (just crazy, greedy, excessively optimistic or astroturfers trying to create hype with a frankly naïve and easily unmaskable method?).
