Another thread asks where the cheapest media can be found. Didn't want to hijack so I ask - why so much media? The quantities being tossed around, 25 pound boxes, 40 pound containers, "so much I had to break it down into 5 gallon buckets" are puzzling to me.
Maybe I don't load enough ammunition or don't change out my media often enough but I'm still on my first 12 pound box of Tufnut ($20), have tumbled in the vicinity of 10,000 cases and still have half a box left.

So I would guess 10,000 cases tumbled/6 pounds used
or ~ 1600 cases per pound.

It's 2x the price of lizard litter but it lasts so long that the "cost per unit tumbled" comparison becomes the relevant number.

How often do you folks change out your media? Can you guesstimate on cases per pound tumbled?

Thanks,
Alan