Most of the benefits conveyed to straight childless married couples have to do with survivorship and inheritance. And although it is automatic in straight marriage many many gay couples have similar protections through forming living trusts.

As a side note I read somewhere that divorce rates for gay marriages are the same with those of straight couples. I guess equality works at both ends too.

Gays couples when separating seem to just work things out between themselves and have escaped the negative aspects of marriage and the accompanying legal responsibilities all these years, alimony, communal division of property, child support...etc. I wonder if some gay men will regret they even asked for gay marriage. A coup and boom for divorce lawyers, most definitely.