In any event, I was talking with my partner this evening about all this and we are totally cool living in sin, for now. But down the road, the marriage option is important, especially should we decide to have kids. Fact is, civil unions are not the same and the legal rights we'd still lack simply relegate me (an American) to second class citizenship. So long as marriage is the only currency of committment that truly matters, we will fight on until we prevail.
And we will prevail.