I play Quake 3 at 500fps. It's visibly slightly smoother than 250fps, but most importantly the input is more direct at higher framerates, halfing the input delay is very noticeable. If a game doesn't handle high framerates well it's poorly made. I know a few people who are actively hunting on ebay for CRTs capable of 280hz and even at lower refreshrates they are slightly quicker than an LCD display. This stuff doesn't really matter if you play the witcher or fallout, but especially in fast paced FPS it's certainly relevant.
Also saying that the eye perceives stuff at a certain framerate or a certain refreshrate or at a certain resolution is complete bs since the eye is not a camera.
Also saying that the eye perceives stuff at a certain framerate or a certain refreshrate or at a certain resolution is complete bs since the eye is not a camera.