I guess, though if "more efficient business model" means giant corporation can buy and sell in such huge quantities that smaller competitors can't even buy prod

I guess, though if "more efficient business model" means giant corporation can buy and sell in such huge quantities that smaller competitors can't even buy products for same, let alone add small margin for rent and employees, that seems unhealthy. There's no efficiencies they can even attempt at that point. (Let alone the Amazon shoppers who waste their time demoing and trying products in store, then act like they've caught some scammer if it's a few dollars more than online.)