The last 7 were far different IMO. Coming out of the bubble, and very little progress in software, not much needed to change. But now, I think the fact that software, not hardware, is changing rapidly, a 7-8 year cycle isn't going to work.
Sure, they can bolt-on new firmware updates and operating systems, but I think the way we use consoles will change quite a bit in the next 3-4 years alone.
Sure, they can bolt-on new firmware updates and operating systems, but I think the way we use consoles will change quite a bit in the next 3-4 years alone.