The Olympics are often a major cash drain on the countries where they are held. Thus, you had Denver and Lillehammer, both winter sports meccas, in public votes turn down the Winter Olympics even though the latter had the facilities in place from an earlier Olympics. That attitude seems to be spreading to the Summer Olympics with only China being enthusiastic to get it and that due to its potential to showcase the fascist state.
Suggest summer games always be held in Greece. Avoids all the nonsense of who hosts, the payments, etc.