Top drop gets dearer as global demand soars THE latest release of Penfolds Grange, Australia's most collected and arguably most famous wine, is expected to find no shortage of buyers when it goes on sale on Thursday despite its $785 price tag. Parent company Treasury Wine Estates has increased the recommended retail price on Grange by more than 25 per cent from the $625 charged for the 2007, released last year, in response to surging global demand. The company has been inundated with orders for the shiraz-dominant red from across the globe since influential US magazine Wine Advocate awarded it a rare 100-point score.