Wine Spectator's Auction Price Database contains complete sale and pricing information for more than 10,000 collectible and cellar-worthy wines sold at commercial auctions in the United States. These figures are updated quarterly to reflect new averages, highs and lows and other trends.
Wine Spectator's Auction Price Database contains complete sale and pricing information for more than 10,000 collectible and cellar-worthy wines sold at commercial auctions in the United States. These figures are updated quarterly to reflect new averages, highs and lows and other trends over the past three quarters.
http://www.winespectator.com/auctionprice/search
In addition, members have access to the more than 300,000 reviews in our Wine Ratings Search database, which includes scores, release prices, auction prices, tasting notes and recommended drinking windows. (Once you conduct a search, click on the wine name for a full page of details.) All of this information may be handy conveying the desirability of the wine to the charity auction-goers.
http://www.winespectator.com/wine/search
If you are not currently a member, you can try out a one-month subscription for just $4.95 at www.winespectator.com/join.
Please note that the value of a wine is affected by the condition of a bottle and how it has been stored. Wines sold at commercial auction have been vetted by experts and are generally stored at a constant, humid, cool temperature, away from light, heat, temperature fluctuation and vibration. A wine with a low fill level, signs of seepage around the cork or torn label may be worth less than the average auction price.
While commercial auction averages and conditions allow you to set a solid estimated value, when it comes to the final sale price, charity auctions are a different market than commercial auctions and those prices people are willing to pay for the same wine may vary substantially, depending on the audience, cause and the overall feeling of generosity.