A few days before Sandy Hook in 2012, Walmart had Federal Champion .22 LR for $1.47 / 50, or just under $15 for a brick.
I laugh when people lovingly talk about $.97 per 50 .22 LR back in the 70's/80's.
Given inflation, the 2012 price was WAY cheaper.
As late as summer of 2008, it was $0.99 per 50 Federal Champion in Walmart and $9.99 per 550 bulk box of any brand (Fed, Rem, Win). 115gr 9mm 100 round box (Fed or Win) was under $16. After 2008 election, there was the first shortage I experienced (I started around 2006). It lasted about a year. When 22LR was available again, Fed Champion was $1.29 - $1.69 in different Walmart stores and 550 bulk pack was about $15.