OP, if you want to experience Haunted Mansion Holiday, do it. Don't listen to the ones encouraging you not to, especially since they can see you really want to. Does this look cheap and tacky? Looks like I'm going to have to school you on Halloween at Disneyland.
The Disneyland bakery designs and bakes a real gingerbread house each year for the ride. Each gingerbread house is different. Here is last year's. Zero flew around the top, and a ghost train choo-chooed around it, at the bottom:
Tim Burton and Helena Bonham Carter in front:
Since you're a Nightmare fan, you'd have a great time at DL during Halloween. Jack Skellington is the narrator in the Halloween fireworks, with Zero flying around the castle, and he and Sally do meet and greets inside the park. The Nightmare Before Christmas plays a big part in Disneyland during Halloween. Not to mention Space Mountain Ghost Galaxy, which is really cool.
Always great to grab one of these beauties in the park:
Cute, but creepy Oogie Boogie popcorn helper in New Orleans Sqaure:
Ghost Galaxy:
Perfect for you, @
muggle148. I just scratched the surface. I could go on, but I think you get the idea. If you want to visit, save up some money and book a flight and don't let others discourage you.