Supply and Demand.
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Only 12,000 Birkin Bags are made per year. Hordes of rich women pay up to $100,000 per bag.
There are less than 100 bottles left of the 1947 Cheval Blanc. Each one goes for up to $15,000. (I have had one)
There are about 3,000 Andy Wharhol 1967 Marylin prints remaining. They go for $250K and up.
Rarest of all, there are less than 5 Million Bitcoin in all private hands. They go for 105K last I checked.
