I hate to break it to you all, but unfortunately, rampant speculation, the hack attacks and massive price drops have already essentially killed bitcoin from the credibility point of view. No large company will willingly use a currency if using it risks their profitability on the scale bitcoin does.
Such a volatile market also has the potential for ENORMOUS gains. People have made quite tidy sums of USD from BTC. THat wont go unnoticed by investors if it continues. Rewards require risk.