There is also a great difference in having the passengers walk to the property, vs moving them up to 50km in each direction that costs more than $10 pp, whether by taxi or by bus. No one builds a 500 room property on airport grounds if they do not have deals in place with airlines beforehand. Also remember that the IST hotel market is not like other ones, taking Covid out of the picture, Istanbul hotel prices are very fickle, and there is no floor on consumer rates when things are not going well.