I have yet to see a concert with a hologram instead of a band member, but it's something that I would be open to.  I do feel that once an artist goes to Rock n' Roll Heaven there isn't anything you  can do to experience the thrill of actually seeing them live on stage.  So a hologram is the next best thing!  Check out this video of the updated version of Ronnie James Dio on tour in Germany by clicking here.