What's interesting is that, despite all of the discussion about gold, it has actually slightly underperformed the S&P 500 over the past six months. Silver, meanwhile, is displaying every tell tale sign of a bubble. Look at that spike in volume that is coincident with a large and even accelerating rally. The only reason demand keeps rising is seemingly because of expectations of higher prices. Supply may be tight, but it certainly isn't tightening at the rate prices are rising except for the spike in speculative demand.
Of course, there were approximately 20 articles today declaring that silver is not a bubble. We shall see. In any case, my large collection of silver coins I accumulated in 2006-2008 is looking pretty solid right now, though I don't ever intend to sell them.... or I didn't before silver prices nearly tripled.