Realistically, airports like Newquay are at risk as a result of the disappearance of 1970s/1980s-style regional aviation. Here in Germany, regional airports suchs as Kiel (KEL), Hof (HOQ), Mönchengladbach (MGL) or Augsburg (AGB) that used to have to links to hub airports such as FRA, DUS, BER or MUC (some to three of them) with 50-70 seater turboprops are nowadays general aviation airfields. And even the next bigger category of airports (places like FMO, SCN) is now struggling unless they are willing to bed Ryanair.