I would never discourage a person from NPCing, especially a weekend written by the mighty and brilliant Ali-monster! I think if you NPCd the event it would be great because you will have the chance to get used to the game some more and earn build for your PC. HOWEVER, if you like scares, chills, and thrills...I think this event would be great to be present as a player. From what I have seen of the in game build up, this event is going to be very fun for the horror enthusiast.
Either way, you are in for a good time, and I'm happy to hear you're going to attend.
-Justin C.