Any manufacturer of a product that needs a commodity that is sold on an exchange will not only hedge their purchases, which means that they pay what the market things the stuff will sell for several months out, but also leave a margin in their pricing so they don't have to change the price every few weeks. Airlines will allow for fuel prices for example. If silver suddenly starts selling for a couple of months at 10 bucks, then you can expect a few manufacturers to offer some special sales. If it stays that was for a year, then the prices may go down.