I'm guessing it is going to be around 300 or 400 dollars, because the technology is stronger than the ps3 and xbox 360 apparently.
Its not overly expensive to buy chipsets for a console at mass production levels that is superior than the PS3 and Xbox 360. When matter of cost comes to play is what manufacturing die size Nintendo ends up utilizing and what transistor count the chipsets will end up with. There are options commercially available that could utterly destroy the PS3 and Xbox 360 yet Nintendo would still come in under the manufacturing costs of those consoles as they where originally. Specifically those options would merely mean Nintendo has to spend a little more than twice the money it originally did on silicon. Current statements point to the possibility of the system being higher end than I and many others originally expected, so I'd be shocked if this console launches under $350 U.S.