I would do it like this: I would create a yearly --- no, make that lifetime membership pass which can be obtained for $30 or whatever. The locals would get this for free. With the membership pass, you would go to a separate lineup which has priority over the regular line up. Then I would work the the same relaxed pace as before, not caring whether 3 people are waiting or 300. The membership pass could make users and their guests eligible for a discount, like 15-25% off. Nothing too drastic.