Do you believe in marriage?

Recently I heard a lot of people asking this question, in Britney Spears' Reality show, in the starting over house, and in real life. It's an interesting topic, tho I don't really need to worry about it now. A lot of women do believe in marriage, fate, and a love that lasts for a lifetime, does it really exist? or is it just a fantacy? do we get our hope too high and only to be disappointed after getting married? What is marriage, why do we have to get married, and do married couples still love each other after ten or twenty years? if not, what is it that is binding them together? children? money? or responsibility? lots of questions derived from this popping in my head.