I also thought it was a South Korean policy. It's been widely posted in South Korea about the Samsung's zero-defect policy.
Please don't forget Samsung price in South Korea is so high that such a policy is just like the 8MB in a Plextor ODD. In South Korea, even the very small LCD monitor manufacturers often replaced monitors with a dead pixel with perfect ones for years. Samsung just made it official for brand image. The price of Samsung 19-inch LCD was something like US$1,300 in late 2002, more than 2x more than a Hyundai or Daewoo 18-inch LCD.