[HitmanLV]

My friends have the same view - they'd do anything they were asked of by their wives, but the sentiment isn't reciprocated.

This is very true in many cases. There is a pervasive mindset out there that a woman's needs are largely valid, while a man's needs are a bit excessive (and sometimes even suspect). While I don't doubt there is at least some truth to that (as far as sex, us guys can be very demanding - I know I am), it's overstated to the point of not being very helpful to the relationships between the sexes.

[Sirloin]

...while a man's needs are a bit excessive (and sometimes even suspect). While I don't doubt there is at least some truth to that ...

I've found the analogy that seems to work best with women is that a man's sex drive is like being hungry almost all the time. If by marrying a woman I'm agreeing to be fed only by her then she needs to live up to her end of the bargain and feed me when I'm hungry!