The land where the airport is now is very poor quality, very boggy for the most part. How deep they had to go to lay foundations is anyone's guess. On the other hand the land down Midleton/Carrigtowhill are is excellent farming land so the price difference would have been enormous. It is a pity the it was'nt built down there, the terrain is excellent, flat low lying with the N25 nearby, plus the now reopened rail line.