I think that's a bit harsh.
My take is that "crypto-currency" is here to stay, in some form.
My reasoning is that large chunks of the world have "shit-conventional-currencies".
I personally, whilst a fan, have no intention of shifting my pension into one - but if you live somewhere else, it seems as sensible as storing a block of US hundred dollar bills under your floorboards.
Bitcoin itself is a bit unwieldy to use to buy a round of drinks - but I don't see it being replaced as the equivalent of gold. The thing the rest are measured against.
As such, a bitcoin bet is a bet on the concept of cryptocurrency, rather than any individual young upstart.
There's now a whole load of them cropping up - and dying just as fast.
That's understandable as the cost of entry is pretty minimal.
Still, some are getting traction and more importantly the ease of entry is increasing.
Coinbase makes it pretty easy to fill a wallet with your debit card.
shapeshift.io lets you convert between a pile of different currencies easily.
Currently it's the wild-west of speculation, prices to dollar will fly all over the place - but I simply don't see this all "going away".
Price increase has come from more and more people wanting to buy. Each day more people own bitcoin, and that will surely smooth out the market.
Maybe I'm wrong, and people will lose faith and dump - but I have to think that whilst technology enables more and more people to buy, the market will expand and the price will rise.