Stooop please. Just because a monitor is marketed as gaming, it doesn't mean that only they can be used for gaming.
Check your facts first please and gain a greater understanding of monitors before making a recommendation.
SLI 1080s will easily allow you to max out games at 1440p at high frame rates, and G-Sync is there even if you can't get a stable 60.
1080p 144hz monitors are just stupid with those specs, wake up and do the research.