This depends. When you're with bitcoin, you must hold it to be successful. When you're with altcoins, you can either hold them or sell them to buyers. Altcoins are creating a risk factor nowadays and I don't see them positively.
It also depends. Some people daytrade bitcoin and make a buck. If you can predict the pattern, it can be better than just hold it. But I don't recommend doing it though. Usually, people lose money daytrading. they do the exact opposite of buy low, sell high. Emotions
