NeoCaveman - I get your position, and that's why I'm open to handling it in D.C.
But I'm sure you're aware that states currently issue licenses and regulations that are handled federally in many other areas than marriage.
As for the IRS, Bill Clinton has already handled that issue through DOMA. Many, many states have already taken those steps as well through legislation and constitutional (state) amendments.
Worthy points.
But seems like we'd end up leaving all this up to Anthony M. Kennedy writing for the 5-4 majority....