I agree .. my main concern is the value being attributed to all these cryptocurrencies .. easiest way to understand this by example is like this - today A buys "X"coin for 1, then B buys it from A for 2, then C buys it from B for 3 & so on & so forth .. however, what value addition is happening & what is the utility ? not much ! .. looks like a self-perpetuating ponzi scheme to me