A local nursery here in East Tennessee sells 2.8 cu ft bags of Pro-Mix (loose fill) for $14. Not bad compared to everyone else...
I’m pretty limited on what I can get locally - unless I drive 30+ miles from home.
I will tell ya this, though: I’ll be digging up some of my good garden soil in my raised beds this fall as things are petering out and I want to fill flats in my greenhouse for extended growing. I can always put it right back in the Spring.
Take THAT, Dirt Scalpers, LOL! :)