OT, but I would like to share my own experience.
On my own wedding I got my friend to do the photography for me. Since we are very good friends and he was kind of my "apprentice" in photography I trusted him to be able to do a good job and he did.
In addition, he was not offended when I gave him some pointers and suggestions during the outdoor shoot. Imagine being the "art director" for your own wedding photography, fun isn't it?
The best thing is, I even took over the camera for a while and took a few shots of my wife! Don't think I could have done that if we have hired a professional photographer.