Proposition 8

I read something in New York Times about gay marriage in California. They say that the Gay marriage and Gay uni0n help the economy of the state. and some even have estimated that in 3 years, the states' revenue of such ceremonies will  be around $63.8 million. That is why they claim proposition 8 is a threat to the economy. However I don't really agree that we could help the economy by legalizing the gay marriage, since the same-sex union has been legal for a very short period of time, and for thousands of years there were not such a thing and nothing went wrong. The market may change. Specially at first, a lot of people would like to get married, but once it becomes just an ordinary custom, then the economy would go back to what is was before.