Quote:
Most climbing sacks from the top end of the market are as strong as the Mil-Spec stuff.

I respectfully disagree. For basic backpacking/hiking, sure, but not if your pack is dumped on a pallet with 50 other packs and loaded into a cargo plane. Then dragged/humped from here to gone. Not every person here (or anywhere) has the same uses as the next. Hence, the range of gear available.
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It's not that life is so short, it's that you're dead for so long.