The same way manufacturers have slacked off on quality control, because having 10% defective products is cheaper than having only 1%, or 0.1%. Not everyone will return the defective product, and the cost to tighten up quality control is far more than the cost of the <10% returns.
The same way manufacturers have slacked off on quality control, because having 10% defective products is cheaper than having only 1%, or 0.1%. Not everyone will return the defective product, and the cost to tighten up quality control is far more than the cost of the <10% returns.