I'd hardly conclude from one sale that "every Tom, Dick and Harry into wines that sell for astronomical sums". You can see that the vast bulk of sales are in the $140-160 range. That's no more expensive than RWT or similar, and if it's really that good, then probably still decent value compared to other $150/bottle wines.
I'd say, based on this thread and OzBargain etc. that there are /far/ more buyers looking to pay $10/bottle for good wine, than looking to pay $400/bottle for good wine. Read in WineEstate's latest issue that 85% of grapes were produced at a loss in Australia (led by the mass-market dross produced in Riverina/Riverland) last year. If anything, there'll be a crash in the grape growing business, as there's far too much stuff being produced, and sold at consequently (too) low prices.
Just like whisky, 90% of sales are blended whisky and 10% single malt.
However 90% of news, blogs, talks are for single malt.
It would help ( A LOT ) if winery shuts producing a finite stock. Prices would sky-rocket as happen to Japanese Karuizawa whisky.
"A bottle of 1960 Karuizawa sold for $HK918,750 ($118,500) at Bonhams in Hong Kong Friday, setting an auction record for a Japanese whisky."
Japanese Karuizawa Whisky Sets $118,500 Auction Record - Bloomberg Business