And not only that... but a theme park without an entry fee is still a money-maker via snacks, drinks, souvenir cups, and extra-cost rides and line-skipping. In

And not only that... but a theme park without an entry fee is still a money-maker via snacks, drinks, souvenir cups, and extra-cost rides and line-skipping. In much the same way that a company can produce an open-source product and charge for support, feature development, consulting, data feeds and sometimes SAAS operation.