IGN just released the results of a study they conducted on this subject. Almost 2,000 people responded to the survey.
Wal-mart - 64%
Best Buy - 54%
GameStop/EB - 54%
Target - 41%
Circuit City - 28%
Amazon - 28%
eBay - 24%
Toys "R" Us - 21%
Blockbuster - 17%
http://wii.ign.com/articles/926/926389p1.html
The rEVOLution is not being televised