Yes I agree with you that the amount of interest that you will get on the cryptocurrency as it is quite bigger than what you can get in any bank account but as far as I'm concerned I will not do it and I will not even save my money in the bank just for the sake of getting interest from it. The only reason that may make me to save money in bank is just to keep it for safe keeping and if I want to invest into cryptocurrency the only way that I will do it only by investment or by trading with it.But is better than saving money in the bank. At least their is interest in what you are staking compare to saving money in the bank no matter how low the interest is.