Jonathan Rauch argues in the NY Times that the Supreme Court should step back and allow space for a political consensus on marriage/SSM:

But the gay-marriage debate, while assuredly a civil rights argument, is much more than that. It is also a debate about the meaning of marriage, about the pace of change in a conflicted society and about who gets to decide. Whatever the activists on both sides say, nothing in the Constitution requires the Supreme Court to short-circuit the country’s search for a new consensus, either by imposing gay marriage nationwide or by slamming the door on it with an aggressively dismissive ruling. Sometimes the right answer for the courts is to step aside and let politics do its job.