Several science museums now have virtual reality exhibits. One of these
is the Pacific Science Center in Seattle Washington.  Michael Taylor is
the Director of Exhibits there (206)-443-2001. My impression is that
right now it is no more than a novelty. The gragpics are pretty crude, it
is fairly expensive to both build and maintain and the number of visitors
that can use it in a day is fairly small.
 
Joe R.