Eh, I am gonna go ahead and order one for my sub. I need a long cord (~3m) to wrap it around a corner on the baseboards as my daughter recently started enjoying chewing cords, and the sub one is currently where she can get it due to placement. We are obviously teaching her the word "no" but we cant keep eyes on her 24/7.
Figure the difference between it and a super duper one for a sub is negligible. And the price is right.
Going to wait and get a decent power conditioner for my 2 channel setup and then get some .5m PS Audio cords at that point since they will all be almost on top each other. The shorter length will cut down on the cost for sure.