I seem to recall people saying the same thing about DVD, with 4K you will get improvements with projection technology, the fill factor will make the screen door effect even less, it's now very mild anyways but further improvements are always nice, indeed those with Sony's 4K projector report...
Take a listen to Cloverfield, it's Dolby TrueHD 5.1, no need to turn the volume up, earth shattering bass and a very nice surround mix.
Perhaps like me you like the bass in soundtracks to be a little hot, i was actually disappointed in the bass of Abrams take on Star Trek, i adjusted the...