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's quite risky but its worth it when its value skyrockets. You just have to pick which token to invest make sure that their technology is promising and theirs a room for the value of the token to skyrocket in the near future or else your investments will go down the drain. Sometimes most of these tokens are just used for pumps and dumps so invest only an amount that you can afford to lose.