I disagree that being attracted to someone refers only to physical attraction. I'm attracted to intelligence, sense of humor, compassion/understanding, shared tastes, etc. Those are lasting attributes and supercede 'romantic' love.
Also, as far as physical attraction: Whereas at twenty I would've been physically attracted to a guy, say, with lots of hair on his head...that certainly isn't the case some 30 years later, especially if he has the qualities to which I'm attracted. Unnuhstan? :o)
You said that really well. ;)
What you say is true, but only partly. Any sort of initial attraction--physical or otherwise--is guaranteed to be superficial, which more or less makes my point without specifying "physical" attraction.
But the physical component is very important, especially for the young 'uns who are doing most of the marrying. And usually, it plays a much larger role for girls than they will admit. They often seem to project qualities of character onto a person who is physically attractive--they "just know" that the guy is warm, tender, misunderstood, et-boring-cetera, when the only thing they really know is the superficialities.