Nintendo isn't ready to let the world now precisely when they'll be able to obtain a Wii or for how much money.
After Sony revealed the rather large price of the Playstation 3 yesterday (599 for the real deal and 499 for butchered version with a number of tasty features missing), many people expected that Nintendo would reveal the Wii's price today.
Instead, Nintendo kept their conference focused on the games, specifically stating that they are not ready to reveal the price or launch date. They did however confirm that the Wii would be launched in Quarter 4 of 2006.