I have to reference Panda Halves NGC Population Numbers again:
United States 24,276,343
South Africa: 392,859
Great Britain: 192,231
Now imagine when the NGC population for Chinese coins is 10 million or 20 million or matches the US current 24 million and you own several gold pandas, particularly the key dates and 1/2 oz that are the most desirable. So instead of owning the most desirable coins out of 2 million, you own the most desirable coins out of 20 million. What will they be worth then? I'd have to think multiples over today's prices.
Can you make more in bullion? Maybe. I do expect gold prices to be substantially higher in the future so if one would rather hold more bullion you can potentially see the same profit potential as a whole. A lot of ways to play it.