I think earning profit is the best profit for all kind of investment. Besides, there are some advantages of crypto make it different to the others. For example, individuals cryptocurrencies are digital and cannot be counterfeited or reversed arbitrarily by the sender, thus, there will no fraud here. Moreoever, it will identify theif, when you give your credit card to a merchant, you give him or her access to your full credit line, even if the transaction is for a small amount.