I prefer a 19??-2009 25'/day game and option for realtime (1day/1day) monthly paid continuation for us to keep managing our airlines forever, based on real aircraft possibilities, real fuel and loan costs, real market data.
It's hard to say goodbye to our work when a game ends. There's allways so much to be done.
Maybe a single experience could tell us if this is possible, if the number of interested players could worth Sami's work to keep it running.