Also I guess it could also be more of the fact that as things more demanding the gap in experience between PS4 and Neo will be more apparent.
And that's the wrong logic.
To the contrary, there is a big difference between VR and normal gaming.
In normal gaming, you will see games being below 30fps or with crappy resolution on vanilla PS4, cause dev can do it. They did it already on XBO and even PS4, so why not.
Now in VR, it's really different. You HAVE to have something stable and comfortable or it's just unbearable for people. That means vanilla PS4 VR games will HAVE to be at least 60fps with 120fps simulated, which seems to work nicely.
Those vr games will have to run well on normal PS4, no matter how. And they will be tailor made for it. There is no choice.
60 fps PS2 up to 90 fps PS4?
Lol, I'm guessing 60 fps PS3 up to 60 fps PS4
None of those statement are true anyway, by simple logic.
There is what, almost 10 times more gflop between a PS3 and a PS4... How does doubling the power of a PS4 will be a gap from PS3 to PS4 graphics.. It would be more something like same graphics but 60fps > 90 or 120fps But in the end that'll mean the difference if simulated 120fps against true one, and how much will people see the difference, we'll see it.
And when people saying PS3, or PS2 graphic. It's never really that simple. Just look at current PSVR games. They'll have modern shaders and textures, so PS3, or even PS2 geometry doesn't mean same graphics.