Earning cryptocurrency as opposed to buying or mining it is attractive because you dont have to shell out money in exchange for your tokens. This is an important distinction to make. When you buy cryptocurrency online, youre exchanging your local government currency (example: the US dollar) for digital currency such as Bitcoin or Ethereum. And when you mine cryptocurrency, you typically have to purchase expensive hardware such as a graphics card or ASIC chip that will eventually (hopefully) pay for itself and then some. In both cases, you need to spend money to get your cryptocurrency. Earning cryptocurrency, however, has no capital investment requirements which is why its such an attractive way to build a cryptocurrency portfolio.