[Phil Lelyveld comment - these are good rules to live by for ANY VR / AR / MR project.]
1. What is the goal of using VR at your event?
2. Does VR make sense in the space you have?
3. Will your audience want to use it?
4. Could another piece of event technology do it better?
5. How does VR tie in to your promotion and branding?
See the full story here: http://www.tsnn.com/news-blogs/should-you-use-virtual-reality-your-event