The presence of RAF Brize Norton is a powerful counter-argument to the building of more houses around Carterton and also to the construction of London Oxford Airport whose SIDs would effectively ground all RAF aircraft.
Should Brize close, which is presumably what the locals would wish (big increase in their house prices) then the prospect of extensive house building and an airport larger than Heathrow on their doorstep could become reality.
They might then recall the phrase 'better the devil you know'.