I like that idea of rotating the Olympics instead of this constant doing those bids... I think this is most convenient and economically wiser. Maybe break the world up by the 7 continents and presently every continent have hosted the Olympics in the last 50 years, except Africa...So select Africa next and build the infrastructure, maybe in 2 or 3 cities in Africa and afterward, maintain those infrastructures and flip a coin when selecting a site...
PS:
Olympics have been held in Mexico City, Rome, Paris-- hmm, I was wondering, have the Olympics ever been held in Spain and/or Portugal?