I have been finding restocked shelves on occasion in my area. I picked up a brick of .22 for US$25 and some .223 for under ten. I saw a guy that had just rec'd a dozen or so stripped AR lowers for US$225. A bit rich for me.
I got an alert for .223 by email, but before I could reply they sold out. US$6.99 a box w/a 500 max (aim surp)