It would be nice to see a pro-gun group try to make the same equal protection argument. At least bearing arms is actually IN the constitution, not implied by the court.
Next up: polygamy. Since the principal pupose of DOMA (according to Kennedy) was to demean a class of people because of their behavior why not? We are no longer permitted to judge who someone loves or marries so why are we allowed to limit the NUMBER of people they love or marry? I give it 5 years max.
This is already happening in many companies, primarily because of the employer subsidy of a family health insurance benefit. The federal tax code actually penalizes marriage for most middle- and upper-income couples (especially those in which both spouses work), so getting married for a “tax break” doesn't make sense.