CONSIDéRATIONS à SAVOIR SUR VINTAGE WINE

So, is there année easy way to buy and banne vintage wine, and know the best time to open or sell it?I have tasted very impressive red wines made in both the before and after Contour that are right up there with the best Napa Valley vintages. Conversely, I've tasted a few raisiny/pruney wines with chewy tannins and rustic characters, which