The reason PM miners are not going up is because pricing is based on analysts' predictions of future metal prices. Take a look on Bill Matlack's page; he is showing predictions for PMs up through 2014. The analysts' have gold at $1,530 and silver at $31.77 in 2014. Investors are not buying miners because they believe share prices will pull back significantly.
If I were to listen to the ANALysts, I should sell my stack and buy it back in 2014! Unless there are huge amounts of silver mined between now and then, we will have used up any stores of silver and manufacturers/investors will be clamoring for more! The fundamentals, in my book, do not point to silver prices in the very low $30's in 2014. I see prices above $50 by then.