I think if you keep your money on a stable coin then the same as you save fiat money the value will not increase. it's better if you dare risk you using your money to buy bitcoin. or if you are afraid of losing money you can use some of your money. for example you can save as much as $ 30,000 in a bank and then the remaining $ 10,000 you can buy bitcoin. and I think now is the right time to buy before bitcoin defends two by 2020. if you are lucky your money will multiply when bitcoin bull run. but you also have to be ready when this bitcoin dump is a risk that we have to face. but I'm optimistic that bitcoin can pump again.