Yeah, the things that women do in order to outdo their female friends are expensive and pointless--almost as much so as the things that men do to outdo their male friends!
At least men tend to spend their own money to increase social status by buying more expensive cars and gadgets.
Well women spend their time and health bearing and nursing our (hopefully :) children. That's resources they could have dedicated to pumping their social status. So in the end it's fair I guess...