Back in the early 1990's there was a local store selling out and I bought 10,000 .22LR rounds of Winchester white box economy ammo. 5,000 rounds can be packed into a .50cal military ammo box and it keeps them well protected. In fact, I still have some .22LR Federal ammo that my father bought for me in 1963. Every once in a while I take out a box and shoot some of them to see if they will still fire. So far, there have been no failures to fire. Same way with the ones from the 1990's.
The bricks still have $9.99 price tags on them, but they were marked down to $8.70 per brick at checkout. My father also bought 5,000 rounds. A few years later, I inherited his 5,000, untouched. That was three .50cal ammo boxes. I just opened the third one. I got away from the .22LR for several years, but have been getting back to it in recent years.
I was just at Cabela's today and saw that they have an assortment of .22LR on the shelf now. However, the bricks were $75 to $85 each. Boxes of 100 rounds cost $9.99, same as what it cost for an entire brick back in the 1990's. I shudder to think when I have to start buying .22LR again.