2qwerty didn’t just make A point, it is THE point. Of course you need to be attracted to the person and there is nothing wrong with ending a shidduch because you were not attracted. But that is NOT the same thing as picking a date with someone because of their picture. There are probably a lot of people who you would not have picked if you used a picture as criteria but once you met them you saw them differently. If you start a date thinking someone is not attractive, but you have to spend an obligitory hour with them, you may actually find them attractive by the end of the hour. It has happened many times to many people. Looking at a picture in two dimensions only offers lustful options. Looking at and speaking to a person gives you the option to see if you are indeed attracted to them in the way that matters when establishing a friendship/life together.
I think the conversation here is really going off on a separate tangent. It is not about whether or not guys put too much emphasis on physical attraction (which they do of course, but Im a female) but about whether or not you can even know if you are attracted to someone through a photo. You would be surprised how many people knew they had found “the right one” before the chemistry kicked in. If they had given the girl/boy only a photo glance instead of a date, it would not have happened so easily.