Originally Posted by holograph

difference is bitcoin is not a stock.

value of bitcoin doesn't affect it's usefulness and functionality all the way to it's complete fail as you may be thinking, it works just as well costing $100 or $1 . I highly doubt it will ever reach $0, unless something radical happens with blockchain or sha-256 gets cracked, which are very unlikely scenarios; even if sha-256 gets cracked, higher security standard will be applied.