Charted data to support by the way.
http://vgchartz.com/hwlaunch.php?cons1=PSP®1=Japan&cons2=PS3®2=Japan&cons3=X360®3=All&weeks=156
http://vgchartz.com/hwlaunch.php?cons1=PSP®1=America&cons2=PS3®2=America&cons3=X360®3=All&weeks=156
http://vgchartz.com/hwlaunch.php?cons1=PSP®1=Europe&cons2=PS3®2=Europe&cons3=X360®3=All&weeks=156
Only in Europe does PS3 have the slightest of advantage... and this was before the PSP slim which really made PSP sales takeoff.
Consoles don't get that same "redesign" boost.