Marcus - with all due respect, I think you are out of touch with the modern wedding clients.
The vast majority of our brides insist the reverse is true. It's the photos that get admired for a short while then end up in the cupboard.
Since the digital stills revolution, most wedding guests are producing reasonable photos, so they splash out on a good video.
It may be different in your neck of the woods, but once clients have experienced seeing a great wedding DVD, they trim the photo budget to suit.