Seems to me that most marriages fail anyway, so what's so special and shiny about the good old fashioned man/women monogamous stuff?

On the other hand, I think I personally would find it very hard to maintain a serious relationship with more than one person at a time. I think it would get very complicated and I crave a simple life. But that's not to say that other people can't make it work.

I suppose it would be ideal for the state to keep it's nose out, but obviously there needs to be some kind of official framework for when the marriage falls apart (or someone dies) and it all gets legal, with people squabbling over money, children and DVD collections.