Don´t want to wave the Quark banner but you are contradicting yourself. On the one hand you say that cryptocurrencies can´t be undervalued on the other hand you call Quark a dead project - which is saying that it is overvalued/has 0 value. The whole cryptoscene is dominated by chit-chat and self-fulfilling prophecies and you are just another example like the guy who says that Quark is undervalued.
Beyond that it is not true that cryptocurrencies have no tangible assets. Cryptocurrencies do not exist in empty space, they have (or haven´t) infrastructure that supports their use. The value of Bitcoin e.g. is founded mostly on the network, of the exchanges that list it, the apps that were written for it, even this forum contributes to a sustainable value of Bitcoin. Same goes with every other Altcoin. If your coin is intended to pump and dump only, like Pandacoin, you have mostly anything but trade. But there are many coin - and Quark is one of them - where you can see people actually working for the coin and developing cool projects. This, of course, doesn´t mean that this will be reflected in the price shortterm, but it will long term.
Erm, so you're saying that this "infrastructure" is what's driving the price of Bitcoin?... LOL, if that was the case then the price of Bitcoin would be much lower than it is now... what with the ever present specter of a 51% attack hovering over this "infrastructure" you speak of.
The first major Boom in the price of Bitcoin was brought about largely as a result of the Bank run in Cyprus - there may have been other catalysts, but overall it was that Bank run that took us to 1.2K.
Since then, the market has been driven by speculation in it's most potent form. China makes a few redundant statements, the weak hands sell their coins = the price falls.... GOX wont release our coins? = the price falls.... Oh, Walmart is now accepting Bitcoin?? = to the moon!... Sadly, no one cares about the bitcoin "infrastructure"..
And Quark is the most pathetic thing I've seen thus far... Dead in the waters!