For a while I was looking at building a basement with a "picture window" which was really just a view from the floor above ground. "Normal" displays don't simulate a good window experience, a curved display can give a decent simulation if you don't move (and that is what they do in flight sims as you are constrained to your seat), but a light field simulation would really give you the feeling you were looking out of the window directly, even when moving around your point of view.
It could be interesting to do multi-user individual-perspective shutter-based 3D, but you'd need to run at a really high framerate and you'd probably have brightness issues as each eye would only be receiving light for some smaller fraction of time.