You just described the last Chicago Bensingers clienteleAs opposed to what? Crackheads, meth dealers, degenerate gamblers, whores, and other such criminals? Cause look where that got pool in the US.

A private club can provide a serene environment, but the only new blood are those invited as guests by members.
A room open to the public, but well policed is preferable. Those that appreciate a great/well managed room will obey the local rules of conduct to avoid being expelled/barred.