Should metal value affect numismatic value?

Not anbout numista itself, but more about the numismatic market.
Example:

N#10078

Comparing my datasheets, back in 05/2005 its estimated value for UNC was US$12.00, today its US$31.00.
Same variation happens to all my silver coins.

Given that the only different parameter is the increase in price of silver, souldn´t that difference be listed somehow separated from numismatic value? 
How much of that price change is due to numismatic metrics (rarity change for example) and how much due to the metal itself?

just some thoughts.
 

It seems quite complicated to both calculate numismatic and bullion value at the same time, but I agree, this is definently something that would give much more accurate evaluations on numista. Though you would also have to take into account the loss or gain of numismatic value as the value of precious metal fluctuates heavily as we have seen with the recent silver spike.

I’m not experienced at all with these types of changes to the way numista calculates value though, so I’d say we wait for some more people to give their opinions on this suggestion, maybe someone from the numista team.

This coin referenced has a bullion value of 14€, that’s about $17 USD. They would sell for 15-20€ in Uncirculated PP before the silver went crazy, back when they had about 7€ worth of silver as bullion, if they are selling for ca. $30 now that has nothing to do with silver, because the silver value hasn’t reached what they were selling at about 5 years ago. It is pure collectors value (in Germany at least), which I guess drives global prices

King

 It is pure collectors value (in Germany at least), which I guess drives global prices

Not sure about that.
On average, my silver coins value increased about 500% from 2025 to now. That´s a huge increase.

juliofcampos

King

 It is pure collectors value (in Germany at least), which I guess drives global prices

Not sure about that.
On average, my silver coins value increased about 500% from 2025 to now. That´s a huge increase.

Sivler bullion not increased so much in this time. The Numista value shows sometimes very strange results for bullion coins - see this topic: https://en.numista.com/forum/topic172753.html

For some reason percentage over spot was pushed by some members for value correction and with the metal price inflation the prices not only met the melt but overshot it by a large amount especially gold items.