Don't buy new exchange tokens because it's very risky, it's better to invest in the top exchange tokens because they have been proven to have value and are in demand by many people
Thats true, new exchanges are quite risky, so why chose this exchange if you can invest in reputable one and the profit is somehow guaranteed since the exchange is already been existing for years and the tokens prove their worth. On the other side its not bad to try out the new exchanges but proper research is needed.
We don't need more exchange for these cryptocurrency. Top exchanges also support several new feature and new coins pairs.