They may not have much of a choice. It's entirely likely the contract is for houses through X seasons. It would end up costing more to cancel a contract midway through just because. Besides, I think Cult could end up working fairly well as a regular sized house. It's getting a "home-invasion/slasher" vibe the longer the season goes on that I dig in a haunt. I'm pretty indifferent to the story so far. More curious than anything at this point.