I am saying again in addition to other posters...... will MSE ever make it as a Regional VIABLE (Keyword) Airport.?? Never.
Will Campbeltown.?? or Wick.?? or Sheffield.?? NO...for the same reason.!! No catchment area, therefore no Pax.
Sorry to go off topic, but have to correct you there.
Campbelltown, true. Wick, true. But Sheffield is the fourth biggest city in England, and SZD's infrastructure connections (proximity to M1 and other motorways, train and tram) were equal, if not better than DSA. Manston was not viable, whereas SZD was run into the ground because the operators had conflicting interests at DSA where the potential for expansion was better, and because if proven not to be viable, they could buy SZD off the city (who largely bankrolled it's development) for nothing and then make a mint selling off the land to developers.
Right, that should have lit the touchpaper, I'm off to hide now...
*j*