I’ve used a pair of Pelican 1610 cases for over a year. I like this size as it isn’t too big, nor too small – just the right size to keep my camp kit organized. They have wheels, which is nice in the garage; in the field, however, they typically get carried or dragged. Either way works and despite the abuse, they continue to perform flawlessly. I don’t use them for recovery gear as the cases are around 20 lbs empty and would end up way too heavy and awkward to retrieve when needed. Like others have mentioned above, I use duffels for soft goods like clothing. Being sturdy and waterproof provides several benefits; for example, when used as a pantry, they are also bug and sand proof. They also provide a bit more security than the Action Packer box I previously had and can easily be secured to a roof rack or tree to keep the casual thief at bay. (Admittedly, their appearance might actually attract more thieves than a lesser box, but I think the trade-off is worth the risk.) Beyond the obvious uses, my 1610s have also seen duty as a seat, table, a work bench, step stool, saw horses, a toboggan (make sure to remove the lid), and even a raised platform to support the ladder (and weight) of my roof tent […ahem, the time I accidentally left the ladder extension at home]. Anyway, lots of opportunity for backcountry creativity not easily replicated with a duffel bag.