30+ FPS is fine for casual gameplay and hence most casual gamers won't see any reason for higher...
For those who player games online and to a reasonably high level of play then anything under 60fps is holding them back...
The whole thing about what the human eye can detect is a dangerous subject
in studies it was shown that fighter pilots could detect changes that only happened in 2ms (or 500fps) and a large majority of the population can detect changes that only last 1/200th of a second or around 200fps...
For those who player games online and to a reasonably high level of play then anything under 60fps is holding them back...
The whole thing about what the human eye can detect is a dangerous subject
in studies it was shown that fighter pilots could detect changes that only happened in 2ms (or 500fps) and a large majority of the population can detect changes that only last 1/200th of a second or around 200fps...
Will try the link though 




I choose 125 as it is one of the magic numbers that give you an advantage during online play - hence the low res. 
