I beliebe they have under in the rank 200 are good to invest. They need for them is to support for us and for sure if you invested to the coin maybe if the value increase and yout lucky that you have the coin for sure you will get a lot of money because the value under the rank of 200 is very cheap and it will get more profit. But for now I don't have any coin under 200 rank but I have coin who in the rank 100.