Whenever I hear "wedding" I wonder why the male is going for that risk. The obvious unfairness and non-equality during a divorce is the main reason why I never would get married. Its just illogical to put yourself that much at risk.
I'm not religious or anything, so a wedding in itself doesn't mean a lot to me, but my wife and I got married in no small part so we could share health insurance, help with her immigration, and lower our tax burden. I don't regret the marriage, I trust my wife, and we've been pretty happy for the last eight years.
(Also, few of the posters in this subthread are looking at the woman's side of the game theory)