I'd use the airship a lot more if it crashed in Coerthas or Mor Dhona randomly.
Right now I use it about 4-7 times a day, if they reduced the price I'd be on board with it but I think it's fine the way it is. If something in another city isn't worth 5k to go see, then it probably isn't worth the trip anyways
I think the time is just right too- enter gate- get a refill on my coffee- splash some water on my face- sit back down and I'm across the world like magic~