Not sure if you guys have heard about this, since it doesn't really get much press, but apparently it's been hard to purchase Wii systems in stores. We know-- we're surprised too, but it seems that Nintendo's supply hasn't been sufficient to meet demand.
In a statement given to GamesIndustry.biz, a Nintendo representative said that they are (finally) going to increase global production, with a goal of producing 14 million systems in this fiscal year. Hopefully they don't all end up in Japan! If this bears out, and Nintendo finally does get around to speeding up production, this may mean the end of availability as we know them.