This has been an astonishing year for marriage equality. In 2012 there were 8 plus DC. In 2013 another 9. But the "easy" wins are over. There are 33 states that explicitly limit marriage (yes, some of those have civil unions). This year's gains won't be repeated next year. But the tide is turning.
But in the last two years more states have become equality states than in the two decades before that.
In my lifetime I expect the whole country to have changed.
And I wouldn't have said that five years ago.