People of all ages and from all walks go to the games. Like the men of the NBA, these female athletes give the fans what they've come to see. They give young athletes icons. They give the sponsors their money's worth. Even network television is cashing in.
Penises make more money than vaginas.
Look it up. I'll bet you'll find it in fine print, buried in legalese. I suppose if it's yours, it is. But some women, and certainly most lesbians, would agree that it falls a bit short of that. I, for one, can tell you where to get one for a lot less.