Of course, because Nintendo have the cheaper console... Which can be used on all TV types, I'm currently using my Wii on a 17" flat panel monitor though I use it mainly on the standard TV set that I play all my older consoles on (occasionally the big screen HDTV downstairs).
SONY have failed with the recession (which isn't affecting me), because many people aren't going to upgrade their TV sets to play the current generation of games on the most expensive console on the market.
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