(Bloomberg) - “We’re trending above Nascar and the Oscars on twitter,” crows auctioneer Fritz Hatton, as he opens the 17th Premiere Napa Valley trade barrel auction with sharp bangs of his gavel. Everyone cheers, primed to bid big on cabernet after a week of wooing by vintners at tastings and parties. The wildest event was Raymond Vineyards’ “Napa Gras,” where a woman in long black gloves and abbreviated gold body suit poured wine while hanging upside down.