If you don't have a lot of money i would go for saving. If you have money you can invest. For me investing is good because you sell and earn like a pro. I invest mostly on altcoins.
Altcoins have a huge potential because they are cheaper than bitcoin itself.
Investing into Altcoins are the risky investment that can bring big profit and you can rich faster but also make loss all your money. At the moment many altcoins rise everyday and how to avoid bad altcoins which make you loss your money this is a big problem
you said that If you didn't have a lot of money i would go for saving but i advise you should invest even if you have little money because saving until you have a lot money is too long. you should divide your money into two parts, a part use to saving and a part use to investing