It's amazing the lengths that some winemakers will go to. Fanatical is putting it mildly, sometimes it's downright masochistic.
Take YarraLoch's Stephen Wood for example.
An investment banker by trade, Wood has just 6 hectares of vines planted across his Yarra Valley vineyards, but they're on three very different sites over an area spanning 70kms.
That's a whole lot of driving.
There's method to the madness, however, with grapes matched to site characteristics - like Cabernet Sauvignon planted on a sunny, northern spot at the warmer Kangaroo Ground end of the Yarra. Or Chardonnay at an elevated block in the Upper Yarra.
At every turn, this is an operation built on quality, not convenience, with low yields delivering flavour (and exceptional wines).
But it does beg the question - how much would you sacrifice for your passion?
As ever with French wine nomenclature, the definition of a monopole isn't simple...