I do not see any point in preserving it for a truly lengthy time as I will promote them on the spot when its enabling me to make great revenue from it as in no way selling coins can be also dangerous in scenario if cost crashes in coming days so its far better to sell them at a appropriate time.
You should see how the history of bitcoin price until it reaches the highest price. a few years ago many people regret having sold bitcoin at very cheap prices.
We can learn from that experience, that in fact, bitcoin is very profitable when saving in a long time. bitcoin has a great potential in the future at a price that will continue to increase from the current price.