A local amusement park currently charges for each ride individually. However, they are thinking of moving to a pass that allows consumers to pay one price for unlimited use of all rides. The amusement park estimates that the typical consumer has a demand curve of Q = 40 - 5P (or P = 8 - 0.2Q), where Q is the quantity of rides and P is the price per ride.

Given this demand curve, what is the most each visitor would be willing to pay for the amusement parks unlimited use pass?