These state-of-the-art airports are all being built in countries whose industry and tourism is accelerating more rapidly than the available infrastructure. A luxurious airport would certainly be a drawcard as a stopover point - but would it persuade you to actually step out for some sightseeing in the city?
The best airport I've been to is probably Singapore's Changi Airport. It almost makes transit a joy - free Internet, free cable TV, a menagerie of shops, a wide selection of food, an airy atmosphere...Plus, if there is a long gap between connecting flights, you can catch the MRT out to the city for the day.
