Sheldon Adelson, crusading chairman of the Las Vegas Sands Corporation, was in Singapore last month to launch his company's latest casino-anchored mega-resort, the $5.5 billion Marina Bay Sands Singapore.

What the 76-year-old found himself talking about most often, though, was not what his company had just achieved in the Southeast Asian island state, but what it was going to do next and, crucially, where it was going to do it.

At the press conference for the new resort, Adelson was peppered with questions in this vein. Was he interested in building a Marina Bay Sands-type resort — complete with convention, retail, accommodation, amusement and, of course, gambling facilities — in South Korea / Italy / China's Hainan Island / the Middle East / North Africa?