(SFGate) - Thanks to its own vintners' open wallets, Napa Valley's annual wine auction proved that giving begins at home. But those seeking signs that the world is parched for top-dollar Cabernet weren't finding many under the big tent Saturday. The auction tally edged just past $8 million. While that topped last year's $7.3 million total, it fell shy of 2010's $8.5 million haul, a tally interpreted at the time as a sign that the wine industry had sloughed off the recession.