It is funny seeing this concept beginning to gain legs. A buddy and I were working on a concept for VR/AR laser-tag style locations for a college entrepreneurship class about 5 years ago. However, every entrepreneur they brought in to critique our ideas flat out told us this was a moronic idea that could never work and that nobody would ever be interested in. We were told we had to change to a new idea or we'd fail the class. Oh, academics...