I'm only halfway through the book, but I have come to this deep thought:
"So man/I has to offer a woman many things - being more strong than her, being the authority in the relationship, offering her security... But what does a woman offer him/me, really ?"
I mean.. For long time I've come to found out that man has to do so many things - be "pimp tight", assertive, have the power, etcetera, which, at least for some time, take lot of work.. And women do not have to do anything.. At all.. Just present themselves somewhere and respond - And they don't have to wear "sexy" clothes and makeup often (at least here..)
after reading that book I can totally see it. Besides what you mentioned let's not forget that a man has to do the approaching and often get rejected (unless his observations skills are really sharp- something that most men don't have) and all women have to do is choose (from all the men who approach her).
Also (we talked about this in another thread): when it comes to relationships: We as Men are not hard to please. All we want is sex, good food and to be left alone to do what we like: may it be playing video games, reading, doing exercise, watch sports on TV (or whatever your hobbies and interests are).
since women are emotional they need constant attention and care. Not to mention that they always want to buy things (mostly fashion) to feel good. And if you are married to them, a lot of the money they spend on those things will be your money.