I get the impression reading this thread that some feel that we should all be radar controlled at all times. I don't want this.
I prefer not to talk to anybody at all, the basic service is a useful option if one has to cross some controlled airspace.
In these days of expensive people and cheap electronics I would have thought the trend is to have TCAS/FLARM, compulsory transponders and less ATC.
If one really wants to cut incursions make mode-S compulsory and send the aircraft owner automatic fines if they go where they shouldn't. Do it too often or too badly then suspend the license. Maybe a points system like cars.