An increasing number of investors are looking to make money from the wine industry – particularly in China.How are your investments doing, if you don’t mind me asking? Does a morning reading of the ups and downs of shares, commodities and currency markets leave jangled nerves? Then how about a spot of wine? Increasing numbers of investors are turning to the bottle – I mean as an investment of course. And – particularly at the top end of the market – there have been corking rewards.