I wonder why a large retailer like Walmart doesn't start incentivizing their suppliers to do this as well? Some math. -Assume a fixed 120 customers an hour -Assume each customer buys 20 items -1 minute for customer to pay + 1 minute total scanning time for all items = 30 customers / cashier / hour (4 cashiers needed) -Assuming additional barcodes double the scanning time (seems reasonable to me from my experiences at…
They figure once you invested an hour marching around a football field sized store you'll happily wait 45 minutes to check out.