US and much of the world have been going thru what seems like the greatest economic challenge in nearly a century. But i just don't feel it when things come to tennis in general. As a matter of fact, my best tennis following moments were 2003-2007 when Henin and Federer blossomed. Today there seems to be no shortage of sponsors in tennis events. No shortage of general interest in tennis. What accounts for this interesting phenomenon? Is tennis immune from economic slowdowns?