What excites me the most is gaming or even the possibilities of watching live events like you are actually there (think Sports or Theater). Add to that the ability to do it on the go so if you have a commute you can have a little vacation instead of wondering about the dude leering at you on the bus.
Also, in the long run I really think that AR (Augmented Reality) is more useful in everyday life, and that is what I really want, but you will need a device that {if using a camera for the outside world} still shows stereo images of the real world with 0 latency. Imagine being able to walk somewhere and have the directions just floating ghost like in the air all while being up to date on micro-local conditions that are happening around you in real-time.