Wait for the transition... There is a massive influx of GPU miners, and new ones arriving daily... They won't touch BTC.
Once people stop cashing-out, and let the value rise, it will regain. There is a lot of volume on those coins still. I believe they are still doing a lot of marketing. It is just a bump until the market settles.
It is a great coin to mine, because the diff is real low. Ignore the value NOW... as that is irrelevant to being paid LATER. Unless you mine and cash-out immediately, then you just hurt any future potential. I have been buying Worldcoin, Fastcoin, and Mincoin, while mining the hell out of them all. When values are this low, they only have one way to go... Ok, two... up to invest or to down to hell.
BTW, WDC is actually "normal", if you look at more than just the "last week". It still has a steady volume of trades/sales. But the miners got hit with the same crap that FTC and LTC did. Thus, driven down.
Here you can see the difficulty charts. All the jumps are miners moving here, from BTC... Those with humps, are from pool-hoppers, in massive volume, following these charts... (Like multi-pool does, but in larger volumes.) The ones that dropped and flat-lined, got hit from the upgrade transition to the new CGminer vs wallet incompatibility, and the pump-n-dump team/guy that eventually took-over the lower diff pools. Because that is all he/she/they could handle/sustain for an attack.
http://www.coinwarz.com/cryptocurrency/I am all over the place, talking with as many pool operators and coin-creators as possible. (Waiting for them to pay me to shut-up soon. lol.)
The biggest mistake they made was pre-mining coins, and giving them away... people instantly cashed them in, instead of spending them... that just drove the value down. They are out of premined coins to give away, most of them... and the ones that died, cashed-out their own premined coins and killed themselves. WDC, MNC, and FST have not done that.
MNC has the highest potential. The lower earning will ultimately lead to the highest value. Just as the cons paying more rewards will ultimately be lower in value. MNC is in that hump, transition, where many still have those easy coins and are tempted to cash-in... those too are almost gone. That is why it is a great coin to mine. It is easy to mine now, but will be real difficult later, which will force the value to rise fast. Just like bitcoins did, when the difficulty went up, and we had to raise the bar to recoup our losses.