This article about Chicago’s bid to host the 2016 Olympics seems like as good a time as any to reiterate the idea that the International Olympic Committee should fix a permanent location for the Games. Presumably in Greece, but really just about anywhere would do.
Even though competition is always fierce for the hosting honors, the reality is that cities only very rarely manage to reap the financial windfall that Olympics-boosters advertise. But if you actually got to reuse a given facility across three or four or five Games before it needed serious repair/replacement then mounting the event would be much more economical. Besides which, a fixed location would be more in the spirit of the original Olympics which were non-rotating.