Half again as large as Green Bay. But smaller than any media market currently served by an NBA team except Oklahoma City, Memphis, and New Orleans. On par with Norfolk, NJ and Albuquerque, NM.
Larger cities lacking a team are Tampa, Seattle, St. Louis, Pittsburgh, Baltimore, Raleigh-Durham, San Diego, Nashville, Hartford, Kansas City, Columbus, Cincinnati, Greenville, West Palm Beach, Grand Rapids, Birmingham, and Harrisburg.
And it's not exactly as if Las Vegas is on the firmest of economic footing in any case.