To be totally honest I don't use my surround for RTS games for the most part. I find it more of a hindrance than an "unfair advantage". Due to the HUD position, how the side monitors have stretched images, and lastly because a lot of movement in my peripheral vision is more distracting than helpful. I almost always play on just my center screen and never miss the surround. On the other hand with 1st (BL2) and 3rd (Rift) person perspectives I go batsh@t crazy if I don't have my surround.
For example when I ever I put Borderlands 2 into windowed mode to enter a shift code and then go in game, I can't even stand the run to the golden key loot chest with just my center monitor. It's such a weird feeling, almost like I'm gaming in the nude. Yet when I'm actually playing in surround I don't really look towards either side monitor all that much. I was even one of the people so disappointed when I saw how distorted each side image was. I thought I'd made a big expensive mistake.
Now I know what it really delivers, SWEET SWEET IMMERSION.
Why is it so very very hard to make developers and gamers that have never tried it understand what surround does for game play?