It can be a good investment like the below article mentioned but just be ware of the risk you're taking. The value depends heavily on how well the condition is, which poses a dilemma -- if you use it, you have to be very cautious to protect it almost all the time, which can be distracting. It's also susceptible to theft.
The weixin article mentioned a handbag that cost $220 in 1955 has appreciated 60 times to $4830. If the number is not inflation adjusted, the real appreciation after considering inflation is just 20 times.