If you look a bit deeper, you will understand that there is, in fact, no decline in prices. There is no buyers and sellers in the market which is great at this stage, imho.
It means the market doesn't know where to go. Some guys are selling their coins blindly and some lucky ones are collecting their cheap coins. I suspect someone is trying to speculate now before a major increase.
Memorycoin is a long term investment, not a pump and dump coin. It can easily reach to 10,000 satoshi levels.