It's a popular sport in Asia, and a minor sport in Europe. Top table tennis tournaments are televised by Eurosport, so it's pretty big. Tennis futures is really a small niche, only die hard tennis fans follow them.
You have added to my knowledge because I had no idea that Table Tennis had that large of a following! Of course, here in the U.S. they put poker tournaments on our sports channel, but somehow I just can't think of poker as a sport! And I can't believe how poorly I've picked in this Future