When I went in 2012, there was an added "seance" at the end which was fun but unnecessary. The tour was so much fun and informative that I wish it would never end. The mood was kept light though out the night, which I appreciated because some of stories were down right depressing (Las Vegas is the Suicide capital of the world).
There was a moment when we were given dowsing rods and allowed to investigate a haunted park. It was so much fun. I would definitely like to do it again.