It's like betting I would say. You keep mining them on the hope that they may give you good price in the future once it's lifted on exchange. The same was said about bitcoin in its early days. Your choice!!!
There is not much to lose if I mine this coin but who knows it may be on moon next one day. No pain, No Gain. You are right same was said about BTC in its early days. Take risk, you will either win or learn something.