It should be a graduated fare. The first ticket should cost $57 million (round trip, unlimited use, no seating limit), and every ticket thereafter will be $1.00 (each way, space available basis).

Make checks payable to the People of Portland.

Maybe Peter, Neil, Vera, and Steve can go in together on that first ticket.

Or, we could tell passengers the fare is 85 cents at the bottom. And then when they get to the top, tell them the fare is $5.70 to go back down. But the view will be worth it, and what alternative will they have at that point? They're already half way home.