In terms of simple terminal building I meant forget about a mounment anything with capacity will do. After all the rest of the world commission such projects and many for whom money is more of a worry than the Saudis.
Quite simply I think the Saudi establishment (whatever that maybe) are acting like children and not planning ahead with any conviction. If they can build skyscraper that should be renamed Strato-scraper

with little or partial demand for such office space then why not a more prcatical and functional terminal building. They have the money, land and demand for it.