I think it will be difficult to know a coin or a project that will be profitable in the market, because new projects to know their potentialities doesn't matter how much is the price of the project, because the price can be that high due to influencers and other people who is concerned or related in cryptocurrency investment, what we need to understand concerning  a good project is through the furtherance, so for you to know the furtherance you have to advocate time to make a proper research concerning the project before you can as well conclude if the project will be benefit able or not, so that is while some people doesn't invest in coin base on it's price.