The biggest perk of a family membership is the admission into the zoo for you and your family for the next 365 days. It also gets you free admission to the giant screen to watch different animal movies (even the 3D ones), as well as discounts at the gift shop and concessions. Member week is held each summer during which you get some extra perks; my favorite being the free ride passes. Those ride passes are good for the train, carousel, or Zoofari.