The price-cut is only a strategic mistake in the short term, if it comes now before the holidays, for a couple of reasons. It has nothing to do with who is or isn't buying the system. That unique factor Nintendo will retain: that they have an experience built for their motion interface from the ground up. The fact that it was built from the ground up is what will keep them ahead of the imitators launched by the competition, their console has exactly what the expanded audience wants, and right away. Comes with software, relatively cheap, comes with the motion hardware, and the motion hardware is simple (unlike Natal's rather intimidating camera, or Sony's solution involving multiple pieces of hardware)
not intended as a bash against other consoles, mind, just stating what exactly keeps Wii unique, and why PS3 & 360 cannot emulate that quality, at least not without substantial effort to re-launch the hardware, which is why this move won't really jeopardize Nintendo.
The only negative impact it will have is the bad PR that will come from the media (lol, Nintendo has to compete with PS360 price drops), and the lost revenue they'll have to put up with in the short term.

Monster Hunter: pissing me off since 2010.







