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Since this conversation about variety and change hasn't died down...
Here... the last 9 years. I've identified a set of 10 "house genres" that are based on atmosphere, tone, nature, and characters found in each of the houses starting in 2010 (and this can keep going). Now, these are arbitrary. Some houses fit multiple genres (Stranger Things is story and fan-service). Slaughter is Gore and Monster. And some years have more variety than others. The point remains the same. The event ALWAYS features a variety.
And you're worried about the event "becoming" family friendly... they did a Fear Factor house in 2002. Fear Factor, the reality competition TV show. That Fear Factor was a house, at Halloween Horror Nights. In 2002. The same year as Screamhouse and Maximum Carnage.