It's all a matter of viewing distances, joe. 1080p isn't "showing its age" dude. It's all a matter of how far you are from the TV relative to the resolution. At normal viewing distances 1080p is all you need - you can't even see full 1080p detail until you're about 6.5 feet from a 50" TV (7.8 feet from a 60"), which is also about the recommended viewing distance for the best angles and shit. It's why 4k doesn't matter, because you can't tell the difference unless you are super close (too close for optimum viewing distance/angles).
And your average person will notice the graphical leap that's going to happen with full high resolution textures, even if they sit farther than that, because the textures used right now are absurdly low. I don't think you've actually seen anything with real HD textures dude. Try hooking your PC up to a HDTV, run a game withrealhigh resolution textures vs one with shitty normal ones, and you'll be like "wow, holy fuck, I was wrong, Sean is right".
Also yes, 1080p doesn't look very good on a monitor because you're sitting like 2 feet away from it. On a 27 inch you need like 2160p for how close you sit to it.