If hardware were included, I think this would be perfect for the exact reasons you specified. The number of people comfortable enough with computers to deploy

If hardware were included, I think this would be perfect for the exact reasons you specified. The number of people comfortable enough with computers to deploy something like this for such an important task is vanishingly small when compared to the number of people who would pay a little extra to a videographer to bring a ready-made kiosk unit to the wedding.