The important thing to remember also is that the result varies considerably between games: on GW2 is really successful. For example when I look at my character max zoom in, I really feel it is thick, textures are a real relief, and eventually become more detailed, it is very nice. Same thing when you send a projectile in its own direction, can be clearly seen approaching. But once we unzoom it fades a little.
In other games the contribution is very low, and investing becomes delusional. You really have games that have been edited for 3D otherwise it's a waste.
I was on 3 screens in Eyefinity before fashion (AMD side), well I regret my move to 3D because ultimately the immersive side (that's what everyone is looking for I guess) is best with 3 screens without 3D with one in 3D.
To support this comparison, when from 3 to 1 Screen, one has the impression of playing in a corridor, he really lacks a. When you stop the 3D well ... there is less evil in the eyes and ears, but not too much has the impression that something is missing. You can also have 3 screens in 3D, but there will have to call the banker ...