I noticed this phenomenon. Often someone buys up all the proposed tokens with a small amount of trading (for example, look at SMT on hitbtc this night), and after a few days these tokens go up in price very much. Is it worth buying such a token?
It is case to case basis because there are times when you may buy tons of coins at a low price but think as well if there would be people who would be willing to buy that coin for you or else you will just be force to hold that coin forever or just sell it at a loss. You need to analyze the fundamental of the coin if is in demand or not and if the team is still existing or the project is already abandoned. You need to know why the coin has low volume so that you can assess if it is worth buying. Probably, your only hope when the project is dead is that it would be pump by a group.