I picked up some at REI at the garage sale. No wear on them at all.
They really are not as comfortable as I expected.
The real reason I was looking at them was to give a little rock plate like additional protection to my shoes. But my feet hurt a little (more discomfort than true pain) after I walk 3-4 miles in them.
I'd still like to add aftermarket insoles to my shoes. I've used them before.
I have high arches, would appreciate thoughts or suggestions.