What bothers me about even 60 fps is when you move quickly in games. If I spin quickly in place, I can make, say, a small object (a bird in the sky, a tower, or whatever), move across my screen a distance of maybe 15 inches in about a quarter of a second. That's 60 inches a second. At 60 fps, every time that object gets redrawn on my screen, it's hopped across an inch of space. So even at 60 Hz, I get the sense that it was HERE, and HERE, and HERE, but not at any of the places in between, because those pixels never got turned on.
Not sure if that's the same as blur (would blur just draw a blurred line across the entire screen?). But it's why I feel like I want more fps.