Wine-Searcher.com is an online database that brings together wine aficionados and wine purveyors. I often consult this site for price information on rare or hard-to-find vintages of a particular wine.
Say in my wildest dreams and in a state of delirium, I decide to purchase a bottle of Domaine de la Romanée-Conti Romanée Conti Grand Cru, Cote de Nuits, not generally found at my local 7-Eleven. I turn to Wine-Searcher.com to locate the wine, finding a range of prices offered from merchants around the world. I click on a link for a particular merchant, where I learn I will have to shell out a considerable sum, $20,241 in this case, for a single bottle.