In the late 60s the local Skagg's went out of business and sold their powder, primers and bullets at half price. I bought all the primers and most of the powder they had left. I still have a brick of CCI small rifle mag. primers marked .69 that I paid $3.45 and some empty powder cans at $4.49.
You can never see too many Sun Rises nor enough Sun Sets.
last time I bought primers I paid $160 for a sleeve (5K) of Large Std Winchester Rifle primers. Likewise for Large Pistol.
That was back around 2015 maybe.
I was lucky I took inventory right before that "shortage cycle" started.