You have very wise friends OP. However, not all of them alts are going to be useless or go red. I have done the same, but I am still keeping a few like NEM and Monero, which I feel would still have a very good future. Only time will tell if their decision is a good time, one requires plenty of patience in this business.
Actually it depends on which
Altcoins you throw and how many
Altcoins it is. If what you throw away is
Altcoins that comes from the new ICO, then it does not matter if it is discarded because we do not know whether they will succeed in the future or not. But if what you throw away is
Ethereum and the amount is quite a lot. Then you're wrong. At least let the
Ethereum be buried for several years. Later on you can make a big profit out of it.
Because basically, the price of each
Altcoins will always go up. We just need to be patient and not panic when there is a price change. Hopefully we can be more wise in addressing
Altcoins.