LTNman,
It seems we agree, the point I was making that to build a (remote) railway station near to Manston would be a waste of taxpayers money.
Manston is one of those 'oddball' airfields, ex military yet for a decade or few the only military aircraft based there were a couple of choppers thus it began to operate commercially whilst still under military control.
But, with the military now gone, it doesn't mean that there is a market for it to operate successfully as a commercial airport, particularly a passenger airport with a catchment area that only might stretch as far as the Surrey and Sussex borders, other than that passengers would need to travel past the London airport(s) to get there, why would they want to?
If there were a market for every ex military airfield to operate as a commercial airport, for every village or town to have it's own airport, then East Anglia would have, perhaps, 50 airports, Lincolnshire perhaps 20 airports and so on!
Other airfields operate successfully without airline services, airfields such as Dunsfold, Lasham, Cambridge, Biggin Hill and they manage it without having rail stations!