The document discusses why the Venetian hotel in Las Vegas is having to rethink its main feature. It provides background information on the growth of Las Vegas from 1972 to 1992, noting the increase in urban areas. It also discusses trends in the US of population shifting from northern industrial cities to southern and western cities, and people moving from inner city areas to surrounding rural lands. This has led to uncontrolled urban sprawl that is continuing to eat up rural countryside, as seen in the example of Las Vegas.