Its always good to hold one whole bitcoin in our digital wallet, but we are not sure whether it would be too big or too small amount to hold for future as we don't know what would be the price of bitcoin in future.
correct, no one can be sure what is the best price of bitcoin at a moment and even in future too, so its better to hold maximum number of coins and keep it safe for future.
Yeah, as we don't know what future is going to offer us, so lets prepare with the worst situation that even if the price falls down to $100 we should hold a descent amount of coins that can take care of us in future.
It will never go that low in future the price is rising at a moment and it will continue to rise in future too, it might get back to 300 but falling to 100 is simply not possible looking at the present scenario.