Not always but usually yes. I invest too on low ranked coins that i think the project and the coins have a good potential in the future but not much as i invest on top ranked coins.
Invest in low ranked coins usually need times to wait like months or even years to see the result.
I have to agree here. Low ranked coins,,, you can only know if they are good if you really invest your time and effort into knowing the project,,, following the coins, understanding the development plus the mining,,, not to mention the community. But if you just dive into a coin from after launch, you cannot really trust the info you find, except that if it has a history in the market and is top ranked after a period of time.