I think you hit it on the head with the 40-80 it does help give a general sense of how the movie will be either written or acted.

B&M can compensate by using the B&M. Wal-mart has started doing this by offering a discount for online order & store pickup. The big issue will be the reluctance of B&M to share profits with their online counterparts. i.e. Best Buy, for example, is constantly squabbling over online/in-store orders. I have seen some shady stuff done by a store to keep profits in store. Amazon really needs to build more pickup centers. Especially for the areas where the distribution centers are located. They could staff and deliver the goods twice a day and cut UPS/USPS/FEDEX out.