There are trade offs between high refresh and high resolution. It really is down to personal preference. I think your friend is trying to push it a little too hard, but he/she is correct.
I know with a lot of the criss-cross action of the last thread, it got confusing, and information was lost. I believe surround/high refresh/high resolution were all mentioned. I'll give the pros and cons for the different dislays. Hopefully this will be more organised.
Surround: This gives a larger field of view, the game will be displayed across 3 screens. But, by powering 3 monitors, it will impact on your GPUs performance.
High refresh rate: this makes games look fluid. This is because a higher level of output (frames per second) can be shown, it just makes all the motions look buttery smooth. However, the quality of the panels is less than other displays. They do not have accurate colour reproduction. But, they are generally favoured by competitive gamers who like first person shooter games.
High resolution: they are IPS (In Plane Switching - don't worry about the name) panels. They have better accurate colour reproduction. They are 60hz panels. 60hz means the screen refreshes up to 60 times a second, this means a maximum of 60 FPS can be displayed. This is the difference between a 144hz monitor, which can display up to 144FPS. Don't forget that you have been using a 60hz monitor, to this day. So high resolution won't have any "problems" that you're not already used to. So don't let things like "motion blur" disuade you from that decision. Though, another trade-off concerning the 1440p monitors is that they are very very expensive.
It is down to personal taste. I like the 1440p monitors, which appear to have a larger level of both pros and cons. But, I like that cinematic experience, I like to use my monitor to watch movies et cetera. But, I am not a competitive FPS player, you sound like you could favour your FPS games.
By the way, I should be ordering my parts in the next two days. I have also chosen the EVGA 780 :) I'm going to make sure I get a headset, too. For all my buddies on TS!