Kim Kardashian's $40,000 Hermès Birkin bag was left on the floor during a basketball game. The price of the accessory and other superstitions can explain these reactions.
In many countries, dropping your bag on the ground is a sign of bad luck. In Brazil, this mania announces a loss of money, which is why several restaurants in the country offer bag hooks. The timeless and classic models from the big houses increase in value over time, and are - just like real estate - real investments.