If you live in one of the states that recognizes same-sex marriage, whether you and your partner should take the plunge depends on many factors -- including whether you have (or plan to have) children, how you feel about joint ownership of property, whether you want to go through a formal court process (divorce) if you break up, how your state tax liability will change once you're married, and how federal non-recognition will affect you, to name just a few. Keep in mind that the federal government will not recognize your marriage, so state law should be your focus. To learn more, see Nolo's article Same-Sex Marriage Pros and Cons or Nolo's book Making it Legal: A Guide to Same-Sex Marriage, Domestic Partnerships, and Civil Unions, by Frederick Hertz with Emily Doskow.