Ill probably give you more info than you want but its easier to explain the big picture because others jump in with questions.
So if I go to a cotton gin and buy bulk it is the cheapest. A guy on here use to have a dump trailer and would buy it. They weigh you in and out and just dump it in the trailer with a bucket.
The next option is #1000 totes. Its a little more expensive due to the bagging. For the purpose Ill say a tote is $220.
The next option is a pallet of #50 sacks. #2000 per pallet. Its running some where around $550-600.
Now the bales have come out. The bales are #1000 and are small enough to fit in the bed of a truck. I believe their original purpose is for deer so you can get them on a trailer and roll them off in feeder pens by hand. They dont require any equipment like a tote or sacks to offload. I have been seeing them for around $260-280.
Handling has always been the issue with wcs. Fence had weighed molasses tubs and 5g buckets at one time. Basically a large molasses tub with wcs runs about #50. You have to shovel it in and carry it though.
We feed it now when our grass loses protein in the winter or like a drought. I also catch cattle with it or feed it when animals get penned up. #5 per head once or twice a week is all we usually feed. No top dressings or any thing like that. We dump the feed in regular troughs or you can put it on the ground.
I did tubs for a couple years to make sure I liked it before investing in a hopper to put it out. We buy totes and hold them over the hopper to fill it.
I have never dunped a pile out free choice and seen how much they would eat. TB said they would regulate themselves because of the high fat content.