It might have been described as “the vintage of the decade” by French châteaux producers, but the 2010 Bordeaux campaign has fallen flat as wine investors and drinkers are refusing to swallow the high prices demanded. Wine merchants in London report that sales of the 2010 vintage – while still in the barrel, or en primeur – are running at half the volume of last year, blaming fears of a “Bordeaux bubble” as investors push up prices to unpalatable levels.