I feel watches and cars are different. You cant magically "print" 10000000 Bentley's so supply will be constrained and they are expensive to make. I feel the luxury is more tangible than just being rare.

See the discussion around the supposedly lost Van Gogh painting, eg at https://news.artnet.com/art-world/van-gogh-lmi-group-2602847

Nothing about the painting itself would have changed, but its market value depends very much on whether Van Gogh painted it.