If there's a thing that i want/need, then i'll use my coins
But after that? just hold it until the price rise again

Exactly, that is the right thing to do as if they are idle then there must be something in our minds that we are not using bitcoins, we would surely hold bitcoins for price rise and sell it at a right time and make some profits out of it, honestly bitcoins can never be idle as we would surely keep on using it and spending it whenever we need and that is the right thing to do with bitcoins.