I had heard this before - it's an argument to show that divorce is unfair to women. However, you can just as easily turn it around, and claim that marriage is unfair to men.
Personally, I prefer thinking that people make reasonable decisions - at least on average. Thus, this shows that men value marriage more than women do. They are willing to cut their standard of living - to pay more - in order to be married. Women, who do initiate most divorces, are finding that marriage is not worth the extra standard of living that they gain from it, so they leave.
It sort of reverses the conventional wisdom, but I think it is accurate. Rather, it is accurate for married couples. Married men generally value marriage more than the married women.
Drew Garrett