Well most sports fans (and thus probably tennis fans) are heterosexual males.
So I'd be surprised if they watched it for other reasons
When I go to Cincy, I see a lot of adult men there who are more interested in the beer tent than the tennis
I think a lot of wealthy people go to the slams to see and be seen. Kids are always really interested and some of the older women sip champagne while watching Lopez practice, you always see a lot of regular fans of all ages and both genders, but there are always a large chunk of people who are in their late 30s, 40s and 50s, who go to tournaments to mingle with other well-to-do people than to actually watch the matches