Cause that might be too "monopolistic". And well, the 360 is really just a computer. I'd rather see a nintendo + sony console. Nintendo has the ideas and the skill to make top notch games as well as durable and strong hardware, but also tend to undershoot the graphics notch. Sony does not, and can probably design a more modular system that'd appeal to more consumers. Something like a snap-on pseudo PC. 250-300~ for the main box to do lots of things, and overtime you can buy upgrades to snap onto the box or board. Do it yourself.

But that prolly will never happen, atleast not from sony and nintendo.