Trends And Melt On Coins

agree to disagree..with silver dollars as an example, the common dates are very much influenced by melt values..if a 20$ common date coin goes up a buck or 2 in melt it will certainly affect the sell price. as it would be more expensive to purchase.. the key dates are usually never affected by melt values..but common dates are very much affected by melt values/

The value of common date Silver and Gold coins have always been closely tied to the PM spot prices.
These coins have two different values to take into consideration.
The metal content of the coins value is determined by the current spot price and the numismatic value is determined by the grade of the coin and its "Collectability".

For example if you have a common date Silver coin that is low grade or damaged then it is most likely only worth what the metal content is worth.
If you have the same common date coin in a high grade then there is usually a numismatic premium attached to it on top of the metal value.
So with your example of the silver dollar priced at $20 when the spot value is $14 then there is a $6 collector value attached to the coin.
As the PM prices rise and fall then theoretically the value of the coin will also rise and fall but should maintain its $6 collector value on top of whatever the Spot price for the coin is at the time.

trout, I dont think you totally have the right answer.

regardless of what the spot price is, the Numismatic value never changes, unless the demand or the supply changes. PERIOD.

right now a Canadian silver dollar is worth a little less than $14 CDN spot price however most people are trying to selling them for $20 or higher.

for a common date dollar (say 1967) you would need to be in the MS range to be even talking a value of $20
if spot price were to go up to $20 people will raise their price higher, becasue they want to sell for as much as possible, not because there is inherent numis+ silver value. At this point it would be strictly the silver price.

Why do you think there were so many gold coins melted, the spot price of gold was high, and it surpassed any numis value.