I've got more than a few years on you and I was actually a little surprised at what the NZ8 can do with 1080P and even native 4K content. With their pixel-shifting solution [8K e-shiftX] engaged good source material is notably sharper on my 135" screen. It's certainly not a big enough improvement to warrant an upgrade on it's own but it's there.At an awesome age of 50, I doubt my eyes will truly be able to experience minute difference between 4K and 8K in decade or two