I’ve been using a broker to invest in high end wines for the last few years, and it has only been more recently that they made any money. You’d be better off investing in wine storage to be honest. The other rule is don’t invest in wine unless you can afford to drink it, which is what you may end up (having to do) doing. My view is wine belongs to the world of investments occupied by the likes of art, antiques and vintage cars where premium prices are paid most of which (imo) comprises ‘snob’ value. Interestingly enough I was recently in Morocco and India, both of which are now wine (quite palatable) producers. No doubt Bollywood will produce it’s own Bottle Shock as climate change redraws the wine growing map.
