Along with the above, I honestly found the specs for the PS4 to be very good. It sounds like a good investment in the long run.
The Dual Shock has been improved, but I'm suspicious; is Sony is going to make PSN as "free" as it was before?
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I'm very content with my Xbox 360, and I will also be content with the 720, or what ever they're calling it. I use Razer controllers, which I really like, so I don't want to give those up. Plus, Halo! :D I was very impressed by the PS4, but I won't be buying it.