It is important to invest, when the investment has great potential. But I think it is a good decision to also have reserves, because you may it need in the future and this can make a difference.
I think if in order to choose which one is an important advance of investing or saving both are equally important. but the most important thing of course is to save because you can become rich store of income that you get. investment is only as a sideline. you can still become rich even without investment