I analyze demand and offer week by week to try to get the most promising altcoins in the short-term (days or weeks).
I agree that some altcoins are very good for long term investments, but, for the purpose of this thread, if I see that it is not convenient to take that cryptocurrency for that week, I just wait for a better price and/or better conditions.

I've just had Nexus +179%. After analyzing it again, I took my profits because the conditions and the price changed and it doesn't look convenient to me now. Even if I thought that it is a good long term investment (but I don't think so), for the purpose of this thread I wouldn't keep it, I would wait for a better price and/or conditions to insert Nexus again in my top 5 list.