It does take a lot of time. You have to deal with the lighting issues. Those unexpected shots that you can't sit there and figure out what the camera settings need to be in a split second. Then there are all those people in the audience that think they are the photographer snapping shots at the same time (even though you ask them not to) and then you have the problem of ghosting. You can't exactly stop the bride and say...heh you need a little powder on your forehead because we are getting a reflection while she is walking down the isle. Wedding photography is in my opinion one of the hardest to do, simply because it's a once in a life time moment and there is no going back to re shoot the shot if it doesn't work out right. I've only done three weddings, two were small but the third was fairly large. After the third, I don't want to do it ever again.