If on the other hand you are a wounded rattlesnake inside a pretty package...
So, Aardvark154, it sounds like you did meet my ex g/f? How is she doing? I haven't spoken to her in years. My initial reaction to send a sympathy card to her fiance when her marriage was announced was supressed in the name of polite society. I just had a bourbon, read the wedding announcement in the paper again and thought 'careful what you wish for Jack, you may just get it. Poor bum'.
Anyway, iit is true a lot of guys I know marry homely girls, so the OP has a point. I find that the reason is the homely girls are nicer to compensate and actually pursue the guy and court him a bit to land him. From experience the attractive girls often don't put out much effort as they don't need to - they can always get dates but can't always get the guy to the church. "Serial Dater' Jennifer Love Hewitt comes to mind - she's always in the tabloids saying she wants to marry and have kids, yet she gets dumped by half of Hollywood. Of course they all want to date her/sleep with her, but they always run when she starts talking weddings. Even the guy who was engaged to her backed out after a year and ran back to his less attractive ex g/f.
I was talking to a friend last week who is dating a homely girl I wouldn't go for in a million years. They are quite affectionate and I asked him if he thought she was hot and he said, after a pause, "Not really, no, but she is nice and loves me, and I can accept that". I always went for the attractive ones which is why I'm still single.