My ideal Atmos home theater would be in a basement. Keeps the heating/cooling noise to a minimum. Surprisingly tough to find in the California desert, but I'm looking. If I win the receiver maybe I'll start digging.
I would love to make my home theater mor immersive. 3D displays are one way to widen the experience, but that have many drawback. Expanding th sound field is the best way to draw us in.