This waiting thing.... –
I have been through many attractions where it is three houses or themes and one entrance. It makes the actual in series esperience too much and a lost value for the customer as well as how much can be charged for multiple events.
If you had an hour wait at a one entrance haunt with 3 themes it would be a 20 minute wait at 3 haunts. The over all size of the location is the same but, being able to charge more for three seperate attractions means more helpers.
Not that this is the actual amount, but 1 20,000 SF Haunt at $12 is pushing it. # haunts each 6,000 or even smaller like 3,000 SF would be worth maybe $8 each and doubles the per customer income to $24. The expenses are the same or even less with multiple haunts.
In the big picture though you just increased your capacity need for 3 times as much parking if that is a limitation. You just increased you capacity from one haunt with a tolerable 1 hour wait to 3 haunts with an hour wait each. This can be good as it means you are making money and has a residual effect of perhaps not all 3 haunts were actually seen by all patrons and they will comeback another evening to see what they haven't.
Additionally, those that can not afford $24 can still have an evening out for $8 per person. You have to look out for the poor people too!
Another fabulous post from the U.S.Department of Wild Imaginings, now in spectaclar stereo, sponsored by the Adhesives and Sealants Council, suggesting ways to stick things together since the 1800s. Not fabulous in a gay way. Your results may vary. Illinois residents add 8% sales tax. These posts have been made by professional post makers, do not try this type of posting on your own without extensive training, lovely assistants and a trusty clown horn.