The original post/poll doesn't provide proper context to answer the question, so I have to go with the last option. I will explain my reasoning why it's a lot harder to answer the question than it seems.
1. Monitor technology used in the comparison.
Back in the days, I used a
Viewsonic 19" CRT
1920 x 1440 @ 77Hz
1856 x 1392 @ 80Hz
1600 x 1200 @ 92Hz
1280 x 1024 @ 107Hz
If I were to use this monitor for 2D or 3D work at 60Hz, it was unbearable. Eye strain, nausea, headaches, etc. Even for 2D basic work, impossible to use for more than 30 min for me. However, if I switch to a 59-60Hz LCD/LED, I do not have these symptoms. I do not need 85Hz on the desktop or in gaming on an LCD to enjoy the experience. With the CRT, I did
need it. In other words, the technology of the display matters a great deal based on how the image is actually produced in terms of constant flicker/how pixels are produced.
60Hz on a CRT <<<< 60 Hz on an LCD/LED, even though the FPS are identical and even though CRT is way faster in producing the FPS due to instant response, it's more fatiguing to game at 60 fps @ 60Hz on a CRT than on an LED/LCD (and Plasma although we shouldn't compare the refresh rate of Plasma as it's not directly comparable).
2. When high FPS isn't enough
Last year I had a chance to try out Oculus Rift. I tried out 2 separate demos which I believe were running at either 75Hz or 90Hz stable. I am not a person that easily gets motion sickness. I can go on roller-coasters, planes, boats and almost never get motion sickness. 4 minutes with Oculus Rift = almost passed out/lost consciousness, felt like vomiting all over the floor. That obviously tells me high FPS isn't sufficient to ensure a good 3D experience and other factors are in play such as latency.
3. The type of content being displayed impacts if more FPS is actually better and if you can notice it.
YouTube videos at 60 fps look significantly better than 30 fps. Does a movie look good at 48 fps or 60 fps? No, it feels unnatural. Therefore, even if we can notice say 48 fps over 24 fps, sometimes more FPS is worse.
http://gizmodo.com/5969817/the-hobbit-an-unexpected-masterclass-in-why-48-fps-fails
Game wise, there is a way bigger difference to
me between a 30 fps and a 60 fps racing game than playing Starcraft 1/2, Warcraft 2/3, etc. Also, some games feel smoother at lower fps than others (for example single player Crysis 1 feels decent at 45 fps constant but Unreal Tournament / Quake 3 style games are unbearable to play at that FPS).
So I think it really depends because some professional Starcraft 2 player might notice a difference between 144 fps and 60 fps but I certainly will not in that genre of gaming.
4. FreeSync/GSync vs. a regular monitor change the smoothness factor
This is pretty much a fact that adaptive frame rate technology ensures that a monitor with FreeSync and GSync feels smoother in transitions between lower FPS than a standard monitor. In that sense moving from 32->60->43->55->60, etc. on an adaptive Sync monitor looks and feels better. Even just watching any youtube video shows the same.
That means to someone with a regular monitor if frame drop from 60 to 53 fps, they might notice it immediately but with a GSync/FreeSync monitor, they might not without a FRAPS counter.
---
Then there is the point on the overall immersion of gaming. Everyone has an opinion here. To some people FPS/Hz is everything and to others it isn't. Even if I can notice the difference between 60 fps and 85 fps, it's A LOT less than the difference between 30 fps and 60 fps to me. Personally, I hate gaming on small screens. If I had to choose between a 40" 4K 60Hz and a 24" 8K 144Hz monitor, I would take the former all day. Similarly would I take a ViewSonic 19" 1600x1200 CRT @ 92 Hz = 92 FPS over a BenQ BL3200PT 2560x1440 60Hz today for gaming? Not a chance, even though I realize the CRT would smoke it in responsiveness and smoothness in a competitive FPS title. A lot of gamers are happy using 22-27" 1080P TN 120-144Hz monitors, but I wouldn't be. Others wouldn't be happy with a 60Hz monitor regardless of its IQ or screen size, black levels, colours, viewing angles, etc. And that's the whole point of the monitor market =
options. I can't say that 144Hz is pointless to a person A if that's what
they prefer and if they get motion sickness from 60 Hz, how can I argue against how they feel? Some people don't get motion sickness from Oculus Rift, but to me it was an unusable product when I tried it. Is it a deal breaker to me to use a 60Hz LED/LCD? Not for me as I value screen real estate and IQ more.
Therefore, I think the answer to the question is: "It depends."