personally, I have 2 monitors for multi-tasking and just conventional things. i still game on a single monitor because its my comfort zone.
if you feel like you need more desktop workspace, then yeah getting a 2nd monitor helps out immensely.
But if you are a casual/average gamer whose on his computer for a few hours a day then it might not be fully worth it dropping the cash for the 2nd monitor.
its simply YMMV when it comes down to these things.
don't pay the gsync monitors much attention/hype for now, who knows what they really can or cant do or if even you'll benefit from it or not.
also why not get a duplicate of your current monitor? that newegg link says its about $140 AMIR which is great considering you're hesitant on spending the cash.
Edited by DF is BUSY - 3/15/14 at 7:34pm