I guess I will chime in with a different opinion. I went in 2006 with a group of friends. I absolutely loved the parade but the rest of the event was boring imo. It was incredibly crowded the night we were there. The lines for the candy were insane, no way would I wait in a line like that for a piece of candy. I would love to see the parade again but I wouldn't pay the price for the ticket just for the parade. If I had children I guess it would be a different story but as an adult it just didn't have any appeal to me except for the parade.
I was 33 at the time I went, and I love Halloween. We will be there again this year during the time period and we are all returning to Halloween Horror Nights but no one wanted to do MNSSHP again, we were all in agreement that it was not worth it.