Just thought I'd make the observation that Sportsman Supply (Butler PA) has feedback on 100,000+ transactions at Gunbroker. The volume that the shop does online is amazing to me. They seem to have a system of listing / selling that just plain works -- the 0.01 start, etc. They must have full-time people running listing, customer interface, and shipping.

I've bought and sold a few things here and there at Gunbroker -- I have feedback of 22. Takes time but clears out odds and ends, or items I'm not shooting. They've done 5,000x my volume. Gee whiz.