So much for the self checkout trend. Walmart is the latest retailer scaling back on the idea of eventually having no cashiers. The retail giant is physically pulling many self checkout machines from some states. They won’t go away but Target and Dollar General are other stores that are walking them back a bit. Walmart says customer feedback is the reason for the change. "We believe the change will improve the in-store shopping experience and give our associates the chance to provide more personalized and efficient service."