Replying to the bubble dilemma- whether speculative or not, I personally don't see bitcoin crashing down to zero unless the market is gulped up by CME, NASDAQ, etc... They'll determine the price points in that case so that they'll be inline with their futures contracts. "It takes money to make money" is the phrase most of the bitcoin community seems to be ignoring.

 With that being said, if all of the HODLr's stuck together and sold in the million dollar range, I believe the price would continue to climb in that scenario. The chance of them wanting to sell is slim to none, even if it could prevent them from losing their investment and furthering the longevity of cryptocurrencies.