Investment in both Ethereum and erc-20 token is much more profitable. However, if you want to invest in ethereum, you have to invest a lot more. So not everyone can afford this investment. So not everyone can invest in eth. However, those who can afford it should invest in ethereum coin. Because there is a possibility of price increase in the future. However, those who have less capital, they can invest in Erc-20 tokens. However, there is a need to verify.