Well, if such bad scenario ever happen, it will be really meaningless to sell something for 1 $ what I bought before for 300 $ or more

But, it sure that I will not wait that something like this ever happen to me.
If I see clear trend that Bitcoin loosing value and that some other virtual currency replacing Bitcoin, I will for sure sell part of my BTC and invest in this other virtual currency.
It's old saying: ''Never put all eggs in the same basket''.
