When should I buy?

The short answer is 'When you need it.' You cannot approach gold the way you approach equity investments. Timing is not really an issue. The real question is whether or not you feel the need to diversify your present portfolio with gold. If you feel the need, the best time to start is now. With rising competition for the limited gold supply from both nation states -- like China, Russia and South Africa (to name a few) -- and individuals across the globe, there is the chance that small investors can be crowded out of the market at some point down the road. It is better to be a day early than an hour late.