I'm afraid that like the housing bubble, it'll get "too big to burst" and require intervention to keep those who have previously invested afloat while keeping down those outside the bubble.
[1] https://coinmarketcap.com/ [2] http://zillow.mediaroom.com/2016-12-30-U-S-Housing-Worth-Rec...
Maybe if people are looking for long term security and insurance against risk they shouldn't buy into anarcho-capitalist fun bucks... or at least not more than they can afford to lose.