Also worth mentioning that 120FPS isn't really that great. Its super smooth, but you stop noticing it after a while, you'll only pick up on it once you go back to 60FPS again. I use it for the 3D, really don't care that much for the higher framerates, 60FPS is totally fine.
It's only real use is in competitive FPS twitch stuff, if you aren't into that then just go with a 1440p display or something.