They are quick to pass along costs, not so quick to share savings.

Airlines placed a surcharge on ticket prices for high fuel costs a few years ago..
They were in no hurry to give it back. It might still be in effect, for all I know.

It's been a while, hasn't it.  Beef prices began rising about two years or so ago.  Cattlemen competing with ethanol producers=big increases in corn=cattlemen reducing herds because they cannot afford to feed the animals.  In 2015, beef prices are up 90% over just a few years ago.  If you get to Giant roughly 10-11 am daily you can pick up some of their reduced meat prices, often at substantial reductions.  I've gotten some real bargains with chicken, pork, and to a lessor amount, beef.

One thing I buy at greatly reduced prices are their marinated, skinless, boneless chicken breasts that are in a meat case off from the other chicken.  I get a big fat chicken breast for sometimes $1.27 or always around/under $2.00.  When I get home I open the package and rinse off the marinade, then with a very sharp knife, I get at least two and often three nice thick slices from each breast I buy.  I freeze each slice individually, wrap several in a baggie and keep them on hand in the freezer.  Each slice makes for a superb,( broiled) chicken sandwich on a bun with a little Helman's, lettuce and/or a dab of a great Thai dressing from the fridge. Those slices are also great if I need a little meat in a dish I'm making--just pull out however many pieces I need from the freezer.  It takes only minutes to thaw.