it is simply a matter of product differentiation - just the same way that watties bake beans are cheaper than heinz bake beans. the black market price of mxr is about double the black market price of gda - so that explains the difference for the economy pack.
just wait for the generic marketing of dead dog exploration stocks - imagine the thrill of buying a "black and gold" dead dog in the super economy pack - 2000 shares for $5. each individual share, having its own share certificate, printed on "toilet acceptable paper"
GDA Price at posting:
60.0¢ Sentiment: Sell Disclosure: Not Held