... they can't sell you the solution until they sell you the problem.You can't have forgiveness without there being something to be forgiven for. If you aren't lost you can't be found.
I predict that within my lifetime, the distinction between Hell houses and haunted houses will blur, both terms will be used interchangeably to describe haunted houses meant for fun, and the people who started Hell houses in the first place will be all upset and frustrated that their term has been "taken away" from them.