In the past the tender process split the destinations into coastal and goldfields, both winning tenders had to take less desirable routes in order to get the 'profitable' ones to ensure service remained to those towns that otherwise wouldn't get an RPT flight.
Getting Monkey Mia and supporting Kalbarri comes to mind, Skywest did it with the F50 before VARA. I think at one point Skippy did it too in a pair with Geraldton/Kalbarri.