I do think that marriage is a statement of commitment. I also think, perhaps in a biased manner because of my experiences, that the woman is the one who ends up suffering in a longterm relationship without marriage, particularly if children are part of the picture.
At the same time, I want to add that I do not know a single married couple whose relationship I would want to emulate.
Now, I also want to mention here that I am, and have always been, amazed at the gaudy waste of weddings! So much expense, and many end in divorce. I would prefer a simple mountaintop ceremony with a few close friends if the opportunity presented itself.
DSF, it's just at this stage in my life, from this point forward, I can no longer extend myself emotionally (and especially physically!) to someone who is playing games.
Patty