Stever89,
I enjoyed your post, but one suggestion: You could change the 3rd comparison to Europe only. That would make big difference because the PS3 is currently 400k ahead of the PS2 in Europe.
http://vgchartz.com/hwlaunch.php?cons1=PS2®1=Europe&cons2=PS3®2=Europe&cons3=GC®3=Europe&weeks=58
Hardcore gaming is a bubble economy blown up by Microsoft's $7 $6 billion losses.