I think you know how risky it is to invest in such coins, you can lose all your money by investing in these coins.
The OP explained that he used the extra cash which he would not lose if something bad happened to the assets he invested in cheap coins.
Using this method has the potential to bring huge profits if a pump occurs at an unexpected time, especially for cheapest coins with small volumes. We know that there are many similar coins (considering the price and transaction volume) as mentioned by the OP, and the amount is beyond common sense. It took a long time to find out basic information about the coins.
And it takes a random time to wait for the moment the coin is pumped or even destroyed.
Cheap coins are very risky for investment. A lot of depends how useful will be coin in future. There is ecological project
with SEC registration. I think that in future the demand in ecological projects which protect nature will increase.