Amazon, for example, is currently auditioning 20 US cities to be the location for its second headquarters in North America. Those shortlisted include "rust-belt" cities such as Pittsburgh, Indianapolis and Columbus, Ohio (although two decidedly 'global' cities, New York and Washington DC, are the firm favourites to prevail).
The reaction from Australian cities to whispers that Google could leave Sydney suggests the search giant could have conducted a similar bake-off in Australia if it wanted to.
Maybe Google could move to Federation Square in Melbourne? It would seem that is a space for sale.