I'm going to break this down for a lot of you guys.
Sleeper hits are a very big thing. Almost every year has a sleeper hit and houses that people expected to be terrible can end up being decent or great.
If you want proof go into the archives. Dead Exposure, Dracula/Frankenstein, Hades/Cats N Combs, Bloodengutz, Penn and Teller.
My point of all of this is, seriously, don't preemptively jump the gun. If you don't want to go, than don't. If you want to go, and complain, than do. If you want to hate Horror Nights, whatever. All I'm saying is, I would wait to say something is going to be terrible until you go through.