I don't disagree Jeff, but it is tough for kids. Heck, we used to drive there from Rhode Island and sneak in when the fee was like $2.50, because we frankly couldn't afford it.
I remember one weekend trip when I was 17 I called everyone and said that I only had 10 bucks and just enough food for myself, so bring money and food please! When I picked my brother up he had five dollars he'd begged off our Dad, and no food. When I picked up Gary P. he got in the back seat and said straight out: "NO Money, and NO food!" We went anyway, but we didn't have any money for the fee that was sure!