Sidenote: I'm thinking about removing Vert from the poll. This one is too risky considering that it hasn't gone up in price since it was listed on cryptsy. There might be claims of it being 'undervalued' because of this, but this coin has a lot of tell-tale signs of just being a hyped coin that got pumped and has bagholders still talking about it..
The reason the price dropped so much is because at the price it was at, it was incredibly profitable to mine. At the current price it is still near the top for profitability.