Buying a service, such as aeronautical service(s); landing, parking at an airfield, being provided with a radar service outside CAS. One user has to pay, does the other? Not that I'm aware of. I've never asked the pilot how he/she wishes to pay when I'm providing a RAS or a RIS. So, if NATS financial provision for certain airfields is withdrawn, or certain airfields delcine NATSs generous offer to provide a LARS (because it simply won't cover the costs invovled), will LARS be withdrawn, or will the users be charged? After all, they are using a service...
Time for a 'third way'.