There’s tremendous scarcity value that gives you some fundamental foundation for these valuations. My call to arms to everybody in the industry is, again, set up a business plan to get a return at these kind of valuations.

-- RedBird Capital founder Gerry Cardinale, on rising valuations in sports and his plea for investors to get more out of the money they're spending.

“CNBC Sport,” CNBC.com, 5/28