If this new "metal glass" ever takes offs palladium and silver will see a huge increase...
http://www.sciencedaily.com/releases...0110121709.htm
Also part of the run up on silver has been the increase in silver collector coin production by the US Mint. They started producing 5oz coins last year and selling 33,000 units of each one in a 5 coin series with a desire to increase production to over 100,000 units of each coin this year.
If the Mint needs over 150,000 lbs this year it might keep prices high.