In August of 12 I placed several orders. From Hi-Tech I got 3000 62gn pulls for $280 (iirc), 8lbs of pulldown WC 846 for $94, and from Wideners I bought Wolf SRM primers for $15.50/k. If my fuzzy, 6am math is correct, that is (9+1.5+4) right around $150/k for 62gn plinking rounds. Shoulda bought more powder...damnit. Taking it back a bit further, to the spring of 04, 115gn FMJ pulls from GIBrass where $40/k, primers where $.99/c IN THE STORE, and AA#2 was in the $12/lb range. My 9mm practice rounds where around $.06/each. Commercial cast projectiles where even cheaper and I shot the shit out of those.
The moral of the story is, when you find a good deal, stock up. So long as it is stored properly, bullets, powder, and even primers will last a long time. Reloaded rounds will last even longer.
Hope this helps.
ka