I think Bitcoin is more fragile than people in Bitcoin community believe. Overwhelming majority of Bitcoin's value comes from the hope that ti will be worth more in the future. But what if the market will become saturated, there will be very little new investors who believe in "Bitcoin to the moon"? Then a downward spiral might begin, investors who are tired of waiting for massive profits will dump it and be satisfied with modest profits, investors who barely made any profits would dump it fearing potential loss, and so on.