I feel the same way. If I get a $250 knife with qc issues through bad luck and have to send it back to the USA then in my mind it's a $275 knife, because of bad luck. That's why I'm more likely to stick to brands with good reputation for qc. Just my opinion.
To give you an idea, here's what happens to the price of a $250 knife in the Netherlands:
So, $250 becomes € 301.93 (or $372,28) to your door. I used about $35 for shipping in this example.
Now imagine shipping this knife back and forth one more time. I'll have to pay:
Shipping towards USA: $35
Repair under warranty: $0
Shipping Back to Europe: $35
Additional costs for handling/customs/taxes (again): € 70,79 / $87.28
Total: $157,28.
Granted, I'm not so sure about the $87.28 if you can prove you've already been taxed for the same knife once. But still, it's a lot of money.
So, in summary. A $250 knife becomes a $372.28 knife to your door in the Netherlands. Should I need to send it back for warranty once, it might become a $529.56 knife.
Do you understand now why I said the businesscase is different here?