it is not the best way to make money, but I think it is the best way to make money without excessive risk. risks that should you encounter is when the price of bitcoin down, because only at that moment that you have less money. Well, perhaps the best way to make money is by trading, but it has a big risk
A risk is a risk mate, in trading you can learn your way to make money although it is risky and it has been proven by those good traders that there is money in trading, so I guess we do not need to worry so much of the risk as long as we can afford the money we use in trading.