This says something to me. If a 1000 units is the breaking point where Nintendo doesn't want to sell a console anymore, that means that a little bit more than a 1000 units made enough profit to offset the cost of manufacturing, marketing, and distributing. Now, seeing as the Wii sold around 20,000 ww this week (20x more than 1000, keep in mind) and generally still sells around that amount at a minimum ww, it can be safe to assume that Nintendo is probably making a good amount of money from the Wii and the cost of production and distribution is so low that it takes selling 1000 or less to actually make them get close to losing money.
In the short term, it's helping Nintendo out that the Wii is still selling decently considering it's successor has been out for basically a year already (offsetting, in part, the loss that each Wii U sells for).
