Lots of people have been reporting on the high price and shortages of ammo recently. I know the folks over at Master Blasters Bullets and they told me the price they pay for lead has increased something like a factor of four in the last two years.
And if you are, or will be, into reloading you should buy some bullets before the price goes up again. I know the prices at MBB will be going up very soon and I have my order in at the existing prices.
And stocking up now is a good idea just to help counteract the anti-gun bigots.