I guess that no matter what everyone says, unfortunately a token is only valued if someone want's to buy it, and the value will be the price at which they want to buy... market makes the rules
You are lucky to be able to sell for a price, sometimes you receive tokens and you will never be able to sell or use them...
there are 2 options: if you don't believe the project, you get rid of the coins while there is anyone that wants to buy them or if you believe, you hold and hope they develop and that on the future there will be other better opportunities
The project behind a coin is the most important thing, and the fact that after a short time there are no good exchanges doesn't necessarily mean that it is scam or lack of judgement from the team