A park' s user fees are employed to maintain the park  When fewer people use the park, it suffers less wear
Thus raising user fees improves park maintenance even if the number of people who stop using the park because of higher fees is great enough to reduce the revenues devoted to maintenance
To increase its market share, a car company improves the service warranty it provides to those who purchase a new car. Making good on the warranties proves expensive enough that the company's profits decrease even though its market share increases.