Like you said both are good depending on the individual preference, knowledge and skills. For one to make profit through crypto trading it comes with knowledge and skills to able one to know when to buy or sell coins. But anybody can save cryptocurrency in his or her wallet and watch grow.I agree with you saving and trading would still yield profit so it is better to run the both together. But if you are active then you can trade and earn but if you are just looking for something passive then you can saved in your crypto wallet and watch your money grow.