It is good that marketplace is already working and it is possible to buy goods on marketplace using EDC.
I agree with you, this enables the coin to perform a certain function that will positively affect its price.
Now coin to be popular and useful must have any practical use. I think that the time of speculation of altcoins finished. Besides many altcoins do not have liquidity at all.
I do not agree with you. A lot of depends from exchanges. Some exchanges are actively used for speculations by different altcoins.