So when you drop in in your C172, you get a dedicated Fire service, and (maybe) a dedicated traffic and weather service, for free! (Well, at least for you).
Horse ****.
The person who drops in is taxpayer. The amount of tax that person pays is more than it should be, as a consequence of the number of bloated leaches at executive level in Airservices who are diverting the amount of money that would otherwise be returned to government (probably to be sucked up by other bloated leaches anyway...). And the last time I looked, one or more of the RPT operators were enjoying a reduced or nil airways charges (but I confess that I haven't checked the current arrangements).
'User pays' is a scam, and the suggestion that users who are not paying a direct fee are not paying is inaccurate: They pay indirectly.
The discrepancy between RPT arrivals and RFFS hours will be explicable on the basis of some safety-irrelevant issue.