and what if it crashes to zero?
I really find an urge to reply to this idea of Bitcoin falling down as low as zero. Now, that would be the best thing that can ever happen to Bitcoin as far as Bitcoin buyers is concerned. Why? Can you imagine buying Bitcoin with no more need for money since it is already zero...? No, am just kidding.
There is actually a possibility that Bitcoin can fall to as low as (ok this is just theoretical) $500 but at that level there is a big possibility that big whale of buyers can be snapping the available Bitcoin and so the value would rise fast back to a higher level.
People right now are panicking but by the time all dust is settled the market can surge back to levels previously unexplored. This is Bitcoin and extreme volatility is embedded in its genes...much more so because we have a dark cloud called August-One hanging over the community.