xcuse me, why is ladies final cheaper?

Well well well...first it was women's prize money lesser than men's in tennis. After that issue was resolved, its time to look at the ticket prices now. And I have no idea just why is the ladies final cheaper than men's!
Alright, I myself am going to go to men's matches only but I am sure there are huge no. of guys out there willing to see Sharapova (its another story that the chances of her reaching the finals are as much as Sania Mirza reaching third round) in action. To make it more ridiculous, the price of ladies final tkts is cheaper than the mens semifinal tkt prices!