Maybe the Supreme Court justice to watch in the same-sex marriage cases is not Anthony Kennedy, but Chief Justice John Roberts. At GetRel, TMatt asks some good questions about the matter:

So the question many are asking: Why would the ever-cautious Roberts want to take on same-sex marriage at this point in the judicial game? Or look at that question from another point of view: Why would liberals on the high court want to take on this issue at this point, at the START of a second Barack Obama term? They know that their hand will only grow stronger in the next four years.

Any of you legal minds have an informed guess?