I don't know about others, but my POV on this is:
Physical beauty will fade in time. If a guy is looking for someone that he will be spending, in theory, the rest of his life with, he should want to have an "adult" discussion without having to have to explain terminology, or what certain words mean, etc. That is, the woman SHOULD be of comparative intelligence, and simliar interests.
My opinion is that men who go for the woman with looks, first and foremost, without regards to her potential as someone that can actually hold up a decent conversation are asking for future trouble, and are immature in the ways of having long-term future happiness.