The question is when is the PS3 going to under $200. It did wonders for both 360 and Wii, but i don't see it happening anytime soon. Besides even if things stay the same as is now, Ps3 won't surpass 360 until early 2012 end then a new console will surely have been announced(or the end of the world, one of the two).
A more interesting question however is, could PS3 sell the most software per consolen( the highest tie ratio).