Three things I'd really like to see in the game that would give it more depth are:
- The option to hedge your kerosine(requires a fictional kerosince price that varies)
- The option to take your airline public(which should also give you an option to buy other airlines that went bankrupt or merge with other players/create Joint Ventures)
- The option to transport cargo too
What might be nice too is to develop your airport. Maybe being able to build a hangar to reduce maintenance, open a hotel at the airport for recurring income, maybe the possibility to even buy entire airports, open stores, etc.
What do you think about these ideas? Anything you like or dislike? That you'd add?