In an interview, Microsoft VP Peter Moore had this to say regarding the PS3's $500-$600 price tag: "Tell me why you would buy a $600 PS3. People are going to buy two (machines.) They're going to buy an Xbox and they're going to buy a Wii... for the price of one PS3."
Can Nintendo and Microsoft fanboys join in the fight against Sony's high console market share? And it would be interesting to see if Nintendo shares the same co-op sentiment. But as for Microsoft, "the enemy of my enemy is my friend."