The price is still affordable, it is good to buy it while its still in that amount, you will regret it when the price will sudden increase and become one dollar for this coming months, buy as much as you can for holding.
We can not predict precisely the future trend of a coin. But if expectations show that the coin has the potential then buy them. and use our free money to invest. Do not risk too much investment on all of them.
if everyone can predict appropriately there will be no risk, and that's why it's called investment, and the big risk will be proportional to big incomes as well. I think cardano is not too potential, because this coin classified as new so it is not clear the future