If you're going to spend money on an airport in south Wales would it not be better to spend it on St Athan? Rail link already runs right past the front door, big (empty) facilities on site, room to extend (max 7000 feet on Googoo earth?) and possibly easier to run a road link past Hensol to the Miskin junction.
Why buy Cardiff when HM Gov already has an airport next door?
Actually, what about Llandow???
