The problem with limited audience dvd's is that there are very few places to market them. With the demise of most of the rental dvd stores, the only places to market dvd's to are the big boxes, and they have limited space so they generally only stock the newer and mass market fast selling dvd's. And , contrary to common thought, only a small percentage of dvd's are sold over the internet. And streaming still has a small percentage of total sales numbers regardless of all the money they've thrown at the process. DVD's are still primarily an impulse buy, so if a customer doesn't physically see it in a store, they won't purchase it. So a dvd of horror night houses probably wouldn't be financially feasible. You could sell it in the parks, but it's doubtful any retail corp. would stock such a limited appeal item. Then there's the right's fees that were previously discussed.