Mayor Boris Johnson's voice would boom from tannoys at every railway station you passed through in the lead-up to the Games, with London's idiosyncratic mayor warning of the "huge pressures" on the city's transport network and urging customers to stay outside the city centre.
That anti-advertisement has now been discontinued.
There might be other factors at play here. Many central hotels are pricey beyond the reach of all but official IOC delegations, so tourists are staying in the suburbs.
After an expensive day out at the Olympics, do they really want to go through the hassle of catching a train into town to spend more money when there are perfectly serviceable pubs and restaurants just around the corner from them?
Bloomsbury, home to dozens of cheaper hotels, seems to be buzzing every night. Likewise, the Westfield Mall in Stratford seems to be doing a brisk trade.
These Games are being staged in an epic global financial crisis. Boris can't be blamed if people are spending their discretionary income more discreetly, Olympics or not.