SNAFU (for Nintendo at least)
If the Wii sales have dropped sharply due to all the stories re lack of stock (due to inability to ramp up production) then maybe it is a temporary thing.
Or perhaps the lack of stock is an indication that Nintendo are doing what they do normally on a consistant basis - shooting themselves in the foot.
Nintendo have a long history of coming up with good ideas then shooting themselves in the foot, the latest examples include talking up the Wii as being able to do what the DS does (allowing people to play with other people from around the world for free) and then failing to add this function to Wii Sports (the most poplular Wii title across all ages of Wii owners IMO) and restricting it severely by proposing only allowing this functionality for the Wii via Wii friend codes.
It also made the Wiimote and Wii nunchuck expensive to buy (and you have to buy them seperately) and did not supply two sets with the Wii (it makes no sense to only supply one set of controllers if you want the whole family to join in).
On top of that they allow crap third party ports to really make sure their noses are rubbed in the lack of HD graphics and then the 'tacked on' Wii-waggle (they add on one per Wii port) makes the Wii functionality look like a gimmick for any that try it and do not try the Nintendo or Capcom core Wii titles.
It's almost like they had a run away success with the DS and nobody in Nintendo could mess with it (too late, success already) - and then somebody let out the Wii, but then whoever it is at Nintendo who keeps messing things up and obstructing things then stuck their filthy oar in and made damn sure they were going to obstruct the Wii.
Which they have had partial success in - if they keep things up the Wii will definately go the way of the Gamecube within two years.