1) they do at movie theaters, restaurants, a lot of places. a 12 pack costs more than a 6 pack. etc, etc. 2) you still get the point. it's then even more cle

1) they do at movie theaters, restaurants, a lot of places. a 12 pack costs more than a 6 pack. etc, etc. 2) you still get the point. it's then even more clear that it has nothing to do with the underlying cost.