No, because in the end its not the price as the primary or even secondary factor for Wii's success. Its Wii Sports and the general library/features the Wii offers. This is proven by the fact that a very large % of Wii buyers will pay 50-75% more for the product off of ebay and craigslist.
I don't think that ever happened for the 360 and only for a few weeks for the PS3 at launch.







