Emercoin was announced in advance. Like others, I saw this thread and mined some at the beginning.
But in any case, EmerCoin doesn't need to be seen as an investment. The main focus of EMC is the technology: Decentralized Domains accessible through OpenNIC, EMCSSL, EMCSSH, folding@home - all innovations which anyone can take advantage of, basically for free.
To EmerCoin's credit, they actively avoid a pump&dump mentality, and always focused on quality of the software and the technology.