Why do the PS3 and 360 sell differently in different regions?

[richardhutnik]

Apparently this last thread I did went too far into the trolling territory: http://www.vgchartz.com/forum/thread.php?id=96517

I guess what I was really trying to go after here is the question in the subject header.  Why is it that Europe prefers the PS3 over the 360, but in America, it is the reverse?  The Playstation brand was dominant in America in the past, but now the 360 brand seems stronger, even despite the RROD issue.  The question is why.  Why was the XBox able to do this in America, but not Europe?  Is it all a matter of ethnic issues, or something else at work?

Thanks...