Here's some deals on Halloween Fun:
Groupon has discount tickets to the Castle of Chaos (multiple locations). Get a VIP pass for $30 ($60 value). VIP pass includes admission to three haunted houses, skip lines, and reentry passes for each house. Look for the link on the right under "More Great Deals".
Get a VIP Pass to Three Haunted Attraction at Nightmare On 13th for only $15 (normally $30). Your VIP pass will get you into:
-Night of the Dead
-Realm of Darkness
And you bypass the line.