First of all i want to know that how did you estimated their value and gave your valuable comment?
I mean do you ever realize what did you mention in the OP?
Trading is now becoming someone's complete earning source and you saying its worthless?
Have you ever tried to hold any altcoins? If you had done,  then probably know the value of it.
If you invest and choose the altcoins correctly then you gonna surely make profit and will love it.