Well, anyone has their personal choice of buying or either selling. They have their own belief and decisions. Some of them might need to sell their coins for an important purpose. As for me, as long as we can hold while the market situation is going better, then it's our choice. But if we're contented with the profit that we have set, then it's our choice to sell.
This is a choice decide by a person but for me it is also time to get out the profit when you invested from drops. If you want to take more risk, just leave the market again and wait. It is an opportunity you do not have to lose.