I'd just like to put in a vote for Diceman's viewpoint. I don't know how much this differs if you're a man versus a woman -- because clearly, I've never been a man -- but as a woman, in my experience, it is very, very difficult to not threaten a man if he doesn't have the education that you do. Education might not be the same thing as intelligence, but in our society, people associate the two, and that causes problems in relationships. I've never made it past 2-3 dates with a guy who hasn't gone on to graduate school of some kind because often he will try to overcompensate for his perceived weakness (his perception, not mine) by bragging and posturing, which is uncomfortable and unattractive. My long, successful relationships have been with graduate students in the hard sciences, who are sufficiently comfortable with their own intelligence and success that they can be relaxed and fun. The downside to dating graduate students is that our careers aren't all that compatible.
I think that if I were a man, the situation would be different, and I might be able to have a comfortable relationship with a blonde accountant who would be at ease around me. She might think it was hot to have a more successful, more educated, and possibly smarter mate. I don't think a lot of guys are looking for women who are more successful, more educated, and possibly smarter than they are (see the post earlier where a guy says that men don't like to be "shown up" by their girlfriends, and don't want women who are "too opinionated" either).
So as an educated woman looking for a man, the field is smaller. Fun.