I'm guessing that american companies know about the potential quality issues in other countries, but are so worried about cash, and are just praying the products at least make it a few months or so. Which of course is ---smurfy---, and you'd think they'd know by now. Or, maybe they're duped by those companies abroad, who show they can produce a passable product, then skimp on the contract units.
Though I didn't have it very long, the D9400 I had was I'd say 95%, compared to other monitors I've seen.