A whole group picture is a pretty hard thing to organize or even have people participate in. I have only been to or involved with one tournament that has done a group photo.
I have found that I actually like 'card' pictures better. A 'card' picture is where you get a group picture with the people on your card on a particular hole.
I have found that the card photo is more memorable to me for it has more personal connection (kinda know the person i am next to etc) and the picture is more than "see that little speck 3rd from the left on the top row...yeah that's me."