Yeah...maybe eventually we'll be able to spend one evening walking through the Grand Canyon and the next hiking a particular mountain trail - from the comfort of home. Not quite the same as reality, but it'd be better than what we've got.
You could set up a business, recording such hikes for people who want to enjoy the thrill vicariously.
Put on a helmet similar to the display helmet, and capture three dimensional views as well as natural sounds during the hike.
Same for snorkeling, sky-diving, bungee-jumping, and surfing.
And a lot of computer game programmers could conjure up some interesting places to visit, too, like say, oh, a Flying Castle!