Audiophile demographics?

Neuro-scientists are still researching cognitive differences XY vs XX causes in the brain. So far, there is great overlap in any Gaussian bell curves of what they quantify. This makes a concept of gender too weak for me to ascribe this difference in interest in audio equipment to genetic differences between men and women. I think it is caused by environmental differences in what roles are assigned to males and females and these roles are purely arbitrary. Many women are engineers notwithstanding gender expectations. The same could happen to audio given the right social environmental conditions.

@danvignau 

"Also, guys need an excuse to invite anyone over. Girls have things built in for this."
What exactly are these built in "things" that women have?

Nice try Duke!   Regardless of gear and bigger and all the macho talk in these tag-ons there is one thing not one man has said about 'watching women or listening to music with women'...in my 70-something years I have never ever  even seen a woman actually 'listen' to music.  Never!  Listening is more than 'catching the lyrics'.  And I am very friendly with many women.  But you can watch them glaze over when you put some Captain Beefheart on the turntable.  I think that is why they tend to more opera with all the visual stimulation and a story of pain and heartbreak.  Women seemed to be more attracted to music videos too.  Ask a woman to close her eyes and have a conversation and see what happens.  Or of course, they jump up and need to dance.  But sit and listen the way my male friends or my adult sons listen; not. 
I think it is far less about expressing emotions and far more about getting your own bad self out of the way and to shut up long enough to 'listen' to music.  $6 ear buds or $60,000 speakers make no difference if you are not a listener and only a 'hear-er'.     

keithsax:  Did the transgenders you mention change to girlish people to guyish?  If so, was it to be accepted as audiophiles>  TeeHee from a very guyish dude.

drblarney1:  Yes, I agree, mostly.  We inherit things genetically, but mostly physical attributes.  We also inherit socially, from those we are around.  We rarely learn behaviors, and especially not identities,  on out own.  Even kids who are mistreated still learn to be like their tormentors.