Some sort of equipment is essential. Loader, Big tractor, big skid steer, fork lift. It is impossible to move them without it. While it is convenient for some folks, bagged still remains as the best of both worlds.
Like the FRAM Oil Filter man: Pay me now, pay me later......... Pay if forward...... It costs close to the same number when real costs are factored in.
Northern Maine: you have the best of both worlds right now, and it is impossible to improve on that price, even if you drove your own rig down and back. Bulk works for those who have the room and equipment to make it work.
Here is another use for them. If and when you are lucky enough to score some free coal, we use them to dump the bounty into. No need to reload the product, just lift it off the trailer, and you are good to go.