I save my coins for as long as possible. I sell some of my coins if I see that I can make some money but I never sell all my coins at once. That is just not a smart thing to do. The price can go up at any time when you at least expect it.
yes all depends on the coin. if it looks to have a good project and dev are always updated on the coin. I also dare to hold such coins as long as possible. because usually there is always a high rise.
It is indeed good to save your coins now around this time, there is no reasons to sell it now because the value is not even high enough to sell it and that will be bad if you do that.
The most people are indeed also thinking that the value will be more in the future so they can have some good profit.