coins they need to decide by them self and you are not going to do that for them you are not very clever person dumping them now.
Exactly we are investing our money in bitcoin so we can decide what we want to do according to our convenience, if you are satisfied with price then sell it or hold it for future.
It's all about strategy. People have different insights on how they will handle their coins to be sold or their money to be buy. If you feel you can make profits in the future if you buy at the current then just go. If you think that if you will sold your coins today will not give you regrets then just do it cleanly with no regrets later.
Indeed you have to be sure of your choice because if you don't it will just be bad without any doubts.
I think that strategy's not always work but most of the times its working.