I went to a wedding without taking a camera with me. I'm so proud of myself. There were two photogs covering the event and I didn't even stand around and try to talk shop. I just let 'em work and acted like another random guest. Felt pretty good. Like being a celebrity in a public place and nobody recognizes you.
On the other hand, the little disposable camera on our table at the reception should have some rather interesting photos on it when it gets developed.