My parents didn't marry until a couple years ago. They've lived together for thirty years, worn rings for each other, raised me and my sister together, shared their finances, gone to PTA meetings together, and all that. But for twenty-eight years their relationship had no legal standing.
...I guess that means they should've been practicing abstinence? Instead they not only threw away their purity, they added to the population of poor unfortunate out-of-wedlock babies! Tsk, Mom and Dad, TSK.
I'm against gay marriage. I'm also against straight marriage. I just don't think that there should be penalties and rewards--or any kind of legal recognition--of private relationships. I may end up doing it someday if it's financially advantageous, but it's wrong. Not just to gay people but to single people, to people in bad marriages, to people who love more than one person, to people who love one person of the opposite gender but still don't benefit from making it legal.
I'm still going to have a Jewish wedding, of course. (My parents did, thirty years ago.) Defying The System is one thing; defying a Jewish grandmother is... suicide.