What's wrong with an airshow in Bahrain and if they need to build a new facility there is lots of land south of the island that is just barren.
I agree with Shazar that you need to think beyond the 'keeping up with the jones/sheikhs'.
Perhaps they will build a new runway and facility and then use it as a cadet pilot training base? Makes sense when you have neighbours ordering 100s of jet and it needs pilots so why not position Bahrain as the home of gulf/ME cadet training?
Oh, perhaps we may get a nice beach to watch the airshow from?
