Thats why POW coins are not sustainable.
NXT has a real future once the jolly things get distributed, since no expensive mining farms are required.
There is not enough room for all these altcoins,  there is only enough room for 5 or 6 coins max i reckon.
Most of these coins will be dead in 12 months, the hard thing is trying to predict what ones will be successfull.
I do see some future in darkcoin, so im mining some, but i think its going to be easier to pump and dump other altcoins into darkcoin, since its difficulty is so high, i wished i mined this at the start, i could have got 400 coins a day!