You can say the same thing about any piece of jewelry. They serve no purpose other than decoration and an ostentatious display of wealth. technically the same can be said for name brand clothing, higher-end cars, etc. You can find cheap versions to serve the same purpose. An expensive watch is also an investment. Many of them hold their value if not appreciate over time (assuming they are cared for), mostly due to the precious metals and jewels. Opulence, I has it.