For night riding on the road I'd rather have good headlights, taillights and reflective material on my bike. Burning Man is a unique environment with few vehicles and lots of bikes and peds all coming at you from different angles and moving relatively slowly. This calls for different lighting than the higher speeds and uniform travel direction of bike riding on the road.
Having said that I just ordered a bunch of EL wire to decorate my Surly Pugsley for Burning Man this year.