exif data is a very specialized thing, either you REALLY want it because it's a photography gallery, focused on the photography itself, or it's near total waste of time because the gallery is totally focused on the topic of the photos not the photos themselves.
Personally, our current main site is in the latter camp and using that much screen space for something virtually none of our members have any interest in would be a huge waste, but I think Exif data should one of the toggle options so that the admin can choose to show it or not.