So I think everything. Just what will you do if bitcoin starts with the same speed or even faster to fall down? You must understand what ever the price may increase and someday it will happen. It seems to me that it is too early to speak about bitcoin as a reliable investment.
In investment all that really matters is the current value of the asset or the commodity and currently Bitcoin though younger has been able to surpass the value of gold to such an extent that its current is 15x the value of gold. On that premise alone, its confident to say that bitcoins has become the most valuable asset rather than gold.