Jews actually also recite a Blessing over the Moon, too. This occurs at night, of course, and it happens once every month -- and, for that reason, is not nearly as interesting and obscure and cool-sounding.
There might be another reason that we only celebrate Birkat Hahama once a generation, however. Check out the beginning of this article, wherein one rabbi is arrested by brave Policeman Foley -- in Tompkins Square Park, one of New York's punk-rock meccas, no less! -- and another, that tricky Rabbi Klein, flees the scene.
