CBH question regarding 1827 flat and curl base 2 pricing.

I would like to know why there is not much of a price difference between the flat base 2 and the curl base 2 varieties of the 1827 half dollar, given the great difference of their Pop reports.
I have an old 2007 PCGS Pop report and I think it has numbers around 1000 for the flat base 2 and only 55 for the curl base 2, yet hardly any price difference
I have an old 2007 PCGS Pop report and I think it has numbers around 1000 for the flat base 2 and only 55 for the curl base 2, yet hardly any price difference

"Gold is money, and nothing else" (JP Morgan, 1912)
"“Those who sacrifice liberty for security/safety deserve neither.“(Benjamin Franklin)
"I only golf on days that end in 'Y'" (DE59)
"“Those who sacrifice liberty for security/safety deserve neither.“(Benjamin Franklin)
"I only golf on days that end in 'Y'" (DE59)
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Comments
R4 would achieve a slight premium over the R2, but not much.
The fact that there are 49 varieties also scuttles the chances of a price increase for such a variation in number form.
On the other hand there is supply and demand for this type-variety.
Apparently there doesn't seem to be much demand for a CB2 at this point, despite only 4% of all 1827 varieties having the CB2 date type!
The price book is just a little bit off...
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