I've been finding some ammo here and there along the unbeaten path at ma and pa shops. I have 6 boxes since looking the past 4 months. I usually find the last box somebody has. However, earlier this month as I was travelling along I80 I stopped at the Cabela's in Kearney, Nebraska. They had 5 boxes for $29.99 each, so I only took one box. According to the Remington box they were made in 2009. The highest cost I paid was $33 and the lowest I paid was $20 (at a gun show).
Now I have 4 boxes of Winchester and 2 boxes of Remington plus reloading dies. I have not been lucky at finding brass.