People were smart enough to realize that the Apple Watch was a tech product that would be revamped over and over again with newer, faster technology, so spending $10K on one didn't make a lot of sense.
No to mention a $10,000 Apple Watch isn't the same terms in comparing to a Patek or Panerai Watch. A tech Watch isn't and will not hold value, because it's exactly that, a piece Of dated technology that will always be replaced by something bigger and better. Where as a vintage Swiss Watch will likely gain in value based on numbers produced, rarity or materials used.