I think i will my coins when there is a emergency on our family and it really needed to have a money. And another thing is if there is a rumor that the coins valur will be falling for a very long period of time and there is no signs of where it will be back soo. I think this one could make my panic and will sell all my coins. But for me as long as you can hold your coins for a long time and having a patience, you can be more successful.