Most of whats in the stores now was already ordered and delivered last year… So it will take a while for these changes to fluctuate down through the system to the end consumer. But trust me - it WILL happen… 
Here is an example of the price of an item jumping 50% already since last year… (though this one is due to materials costs).
http://www.acf-china.com/blog/2008/03/18/cast-iron-iron-ore-prices-skyrocket/