What dog is worth $10,000?

Excuse me, could you possibly elaborate on what breed of dog commands a price tag of $10,000? I'm genuinely curious about this matter, as I've never encountered such a high valuation for a canine companion. Is it a rare breed, perhaps, with unique characteristics or pedigree? Or is there something else that justifies such a steep price? I'd appreciate it if you could shed some light on this intriguing topic.