Enthusiasts: refuse to eat in the park, rarely buy merchandise, use their season pass far more than families.
Families: tend to buy food in park so they don't have to spend time driving to an outside restaurant and back, buy souvenirs and t-shirts for the kiddies, either have day tickets or use their season passes occasionally.
In other words, enthusiasts= not very profitable, families= profitable.
Gee, I wonder which one I would market toward.
(and yes, I am aware that I am generalizing. I'm sure that some enthusiasts are quite profitable, but from what I've observed, the majority might not be)