The same problem applies: the taxes, and basing all the prices on the gram street value instead of allowing for scale, like with street Ounce pricing. Lots of people pay $10 for a dime bag, but nobody pays $280 for an ounce on the street unless it is truly spectacular...
Likewise, since legal weed isn't sold in dime bags, the prices shouldn't be based on dime bags... especially if you are buying a large amount. Even beer pricing works that way (the difference in price between a single can or bottle, and the per unit price of a 24 case is significant.)