London fine-wine trader Fine & Rare has just launched an awfully cute new online tool, the ability to chart the progress of prices of individual vintages from individual chateaux and compare them with others on the same graph. Sounds a bit dry, doesn't it? But go here and start playing and if you're anything like me, you will find it quite addictive - and I'm not even a wine lover with a particularly keen interest in the financial side of buying fine wine. You can compare the financial performance of multiple different wines over time, even though FRW's data alas stretch only as far back as early 2005, so you will not be...