Well, Reggie cheated. This new Wii "voucher" thing is going to allow Nintendo to carry 100% of their christmas demand right over into January. Anyone who cant find a Wii for christmas is buying these vouchers and if you notice, the vouchers say you HAVE to pick your Wii up by the last day of January. This effectively will allow them to have a January that feels like christmas. Since the majority of the Jan sales will have been purchased on the christmas rush. They will sell out in January based on that, then smash hits in february and they ride that month to sellouts too.
The media will eat it up with stuff like "Its been over a year and 2 christmas's and Wiis are hard to find this February just like last year! Its gonna happen all over again in 2008!!111" which will just fuel the demand even more.