It's back to square one if you are holding a coin or token for long term and finally altcoin season comes and the token or coin surge in value but has no trading volume on exchange, all your efforts and pain while holding is total waste, do not hold tokens or coins that have no demands, real use cases are what makes them very demanding
You are right that it needs to be on demands and also they need product so it will gain more demand, without product the project is useless, without product it is not possible to run and without product we can not actually call it a great project. without that important thing in a project we can not guarantee that we can gain profit in time will come.