A 1984-S annual proof set is worth from $8 to $11.00; also, in this year, the US mint produced 1984-S Prestige Sets - its value ranges from $23 to $30.00.
As of 07/2010 a proof set containing copper-nickel clad coins retails for about $13, while a Prestige set with silver coins sells for about $35.
A 1992 Prestige set is currently worth about $60.00
the 3 coin proof set with 2 silver proof one dollar coins and one 10 dollar proof gold coin is worth about $550.00 retail the 3 coin proof set with 2 silver proof one dollar coins and one 10 dollar proof gold coin is worth about $550.00 retail
80.00
around 50-60 dollars to a colector so around 30$ to any coin shop.
Numismedia quotes a market value of $44 as of 04/2011. On sale at various dealers at about $60 (4/2011).
These were not made in that year.
Numismedia quotes a market value of $34 as of 04/2009
As of 07/2010 a 2000 silver proof set retails for about $35. Your proof set's package should say that it's a "Prestige" set. Anything else contains copper-nickel coins, not silver and sells for about $14.
Numismedia quotes a market value of $405 as of 04/2009
They're not an official Mint product. Private companies create these from normal proof coins and market them as "keepsakes". The bad news is that the plating means they're considered to be altered coins which destroyed any collector value they may have had. IF the coins were special "prestige" proofs, you could at least recover the value of the underlying silver. But if they're standard clad composition, they've lost all extra value. The coins would have to be weighed to determine which type you have, because the plating covers up the edge which would show silver for a Prestige Proof and copper for a standard proof.