"Low cost doesn't necessarily mean low tech. Nintendo opted out of the graphical arms race to keep costs low for the Wii. As a result, the Wii is the only console in this system generation that can't output high-definition visuals. But you wouldn't know that from looking at the sales numbers. The Wii was an instant sellout when Nintendo first launched the system in the winter of 2006, and retailers are still having a difficult time keeping systems on the shelves a year later."
This feature contains information on the Wii system configurations, online, accessories and FAQ's.