Price increases

I have been a big fan of DPMS. I was just doing some digging and found that I have in the past ordered some AR-15 magazines from them. I decided to do a little digging and find some of the historical prices. Below is the result.

Date	Black Teflon	Gray Dry Film
2/07	$12
3/07	$12	$13.50
2/08		$11.95
11/08		$13.50
2/09	$19.95	$19.95

I am sort of amazed that the prices stayed low for as long as they did after the election. Also that is a 48% increase in price. Do you know of anything else that in three months increased in price 48%... other then gasoline? Best investment that could have been made as far as I can tell.