I think these consoles will sell very well out of the gate, but the interest will plummet after that. I think mobile gaming is turning everything upside down.
It used to be that console gaming was the best 'bang for your buck' that you could have. But now it's probably the worst when you factor in the costs of the game, the peripherials and subscription fees for online play. It amazes me that people spend 500+ dollars to be locked into a walled garden.
The only upside is that generations last much longer than they used to.
I whole heartedly disagree with 16-24, mostly because it makes me feel like I haven't grown up yet