I hope I won't be offending anyone, because I personally believe that the only people who can actually say that looks don't matter are blind.
And even then, I wonder, what are blind people attracted to? The sound of someone's voice? The way a person smells, or the rhythm of their walk as they shuffle across the room? These are questions I've always wanted to ask, because after all, blind people get married, too.
As someone who feels the pressure of singleness to try to somewhat maintain one's looks (I had a friend who got married and said, "I can't wait to be able to just let myself go!"), it can be a very miserable journey. I pass up about 95% of the things I'd really rather prefer to be eating (goodbye cheeseburgers, fries, and crispy tacos with extra cheese; hello boiled spinach and eggs), I don't like exercise but I do it because I know it helps, and I do have to be a bit obsessive at times, because otherwise my weight goes through the roof.
So, it would be nice to find someone who cares about weight, nutrition, and exercise as well because if I wound up with someone who sits on the couch eating Doritos all evening, I'd gain 20 lbs. the first month.
The thing I think about though, as calibob illustrated, is that looks change over time. I've written several threads in the past with pictures of popular young Hollywood stars... and then have shown current pictures in which they're 30 pounds older and 80 pounds heavier. People don't find them nearly as attractive in that state.
I know a couple who have been together a very long time, and the husband is picking at the way his wife's face has aged--while seeming to forget that he himself has aged as well and put on a lot of weight (she, however, is thinner than when they met.)
The best example I ever saw of love over looks was of an article about a young, very beautiful, model-looking couple who got married... and the husband was in the military and lost half his face during an explosion. Doctors did what they could, but of course, he looked completely different--and she still loved him.
One of the things I wonder about now that I'm older is, "Sure. He looks good to me today..."
"But will I have a Godly enough heart to think that he looks good 20 years from now? And, even more honestly... Would I have a chance of looking good to him and keeping him faithful?"