Sony taking in a huge first party with Square Enix and Eidos would probably piss some of the third parties off.
Third parties would not face such competition on Microsoft's console.
Sony would also get it's hands on businesses and game studios it really doesn't need. It doesn't even need Tomb Raider. So what it would accomplish is that they'd secure the rights to Final Fantasy, Dragon Quest and Kingdom Hearts. Plus cripple the Japanese gaming industry further by taking out its premier game publisher







