It is a free market after all. Most miners need to get money back quickly, as they are using expensive hashpower and moving from coin to coin... longer term considerations don't affect them. Be grateful for the cheap supply.
Yeah. someone holding the price down on mintpal to get 6 satoshi coins...
Prices cannot be 'held' down, or up for that matter, for more than a temporary phase. These markets are perfectly free, and will find their own levels based on the merit of the currency, and the size and commitment of the community.
If you believe, buy and hold. If the price falls be glad that another investor can get cheap supply.