There are many Bitcoin supporters who believe that digital currency is the future and investing in it today can reap huge returns later. The most popular way of owning Bitcoins is through buying on a Bitcoin exchange. Some people may choose to keep them for a longer time horizon while others like to profit by selling them as soon as they find an opportunity. Like any other asset, the principle of buy low and sell high applies to Bitcoins. Interestingly, there are many other ways to earn and own Bitcoins which are different from the buying them on a Bitcoin exchange.