This's how cryptocurrency begins, Bitcoin, mother of all cryptocurrency then made its way so far as payment tools. If only Satoshi Nakamoto wouldn't find this, we won't ever have tried the sophisticated way in gaining money. However, as legal act hasn't been published yet and the price was fluctuated too much, still be a risky one. People could use Bitcoin as main payment besides money, but we have to consider all the pro's and cont's anyway. However, many people already did, and they felt quite satisfied with the way Bitcoin works. Take a step ahead Bitcoin, you always do better and hopefully could be the best!