An investor will miss out on several aspects of Bitcoin's true purpose if they only buy an ETP. For example, consider decentralization. Pseudonymous Bitcoin creator Satoshi Nakamoto's original vision was to create a currency that isn't controlled by or dependent upon a central authority. In contrast, ETPs are dependent on issuing financial institutions. In contrast, the existence of bitcoin isn't dependent on institutions. Non-Bitcoin cryptocurrencies are collectively known as “altcoins” to distinguish them from the original. “Stack’s Bowers Galleries sales should certainly help create a familiarity with Bitcoin for those who are curious or collector-minded,” said McCartney. “Collectible physical Bitcoin is still a niche category within the overall cryptocurrency community, but we are optimistic for wider adoption as we continue to invest and spread awareness about the category.”