I game on a 55in 4k Samsung, 49in 4k Sceptre before this, and I've got my computer through it. My mantra is pretty much if you're not twitch gaming on it, you should be on a big tv over a monitor. TVs are cheaper in general for the size, you can get IPS which isn't going to be that fast anyhow and you get good enough specs. If you're competing as CS:GO or something like that where the extra fast refresh can be the difference between winning and losing, then go monitor. PS4 won't come near 120Hz, and right now there aren't many TVs that can do that (I think Samsung has a couple, but not sure), most 4k TVs are HDMI 2.0 right now which is only 60Hz, and the good news is that's as fast as HDMI 2.0 is gonna go, so next years TVs aren't going to be HDMI 2.0 120Hz. From what I've gathered about the PS4 4k resolutions, it's gonna be 30 FPS and even then it's going to be half upscaled to be easier on the graphics processor. PS and XBox aren't designed to run on monitors, and while you can run it on a monitor, and it'll look great, unless you have a 27in TV right next to the 27in monitor, you're not going to notice a difference. Here's something to think about. there are, lets see, 1000 ms in a second, can you come anywhere near counting to 1000 in a second? How about 100? Is there a difference between 20 ms input time and say, 12 like some of the better monitors? Yes. But are you doing something that needs that 8 ms? The LG OLED TVs are like 1.3 ms input lag. I can't tell you there's a difference, but for the 500$ I paid for my nice Sammy new at Walmart, I could have gotten a 27in 2560X1440 144Hz monitor. I can't even imagine gaming on a 27in monitor from my 55in, but I'm playing Diablo and Fallout and stuff. And yes, I have my Playstation and XBox hooked up to my TV, and they look good, but I know the TV has upscaled them (PS3 XBox 360). Just be careful what you get if you're getting a TV to game on. I tried out a 60in Sharp, and while the picture was nice, the lag on it was unbearable. Bring your laptop to Walmart, and HDMI out to a TV and try it, then decide. Or Best Buy or whatever.