Personally I wasn't replying to your post about Prestwick, I was posting about Glasgow Airport. I'd agree with you in that Prestwick could become more used, if only because Scotland needs more cheap operators and flights. Prestwick is pretty much only used by Ryanair now. I'd also agree with JohnF that it isn't the nicest airport these days but then again the money Ryanair will be paying them won't pay for many much needed refurbs
My reply was about Turkish Airlines flying to Scotland. Which they do. And will have chosen Edinburgh over Glasgow for reasons, when they decided they would fly to Scotland direct. They won't move to a new airport less than 50 miles away because Ray1951 writes a letter saying it would be more convenient for her