Although the return of buying currency is high, the risk and return coexist, so investors also need to bear the risk of the currency price falling. And mining money is drought and flood guarantee. As an investor, we should take a long-term view of mining machine production.
Keeping in mind the risks whether it was mining or investing in crypto is not a healthy practice as this only affect your decision-making and it leads to uncontrollable emotions. We just choose and do whatever we wanted providing that we know ourselves we can do it and never hesitate to take the risks for there are no rewards for those who are afraid of it.
Mining - huge expenses, huge capital, high risk but possible a big profit
Buying Bitcoin - you can just spend a small amount, less risk, and still, earn a profit