It is not a speculative coin.
They buy it and keep it for years, for a lot of growth.
If you can spend a lot of money and wait so much, then it will be a good investment.
If not, either forget about it, or try to trade on cheap coins.
And for this you need to be able to read graphics.
I agree with you an investment is to buy a coin to store it for years or even in a very long term, because if we do not keep it for a long time then chances are we have a little profit, but remember you also have to choose a coin whose future is good.