I am 100% with Skynyrd.

Those non dealers who want to list a single item, list it, and by the next morning it is on page 3.

At the same time it looks like some member's use the stand as their personal for sale site.

I suggest two estands. One for dealers, as determined by the number of postings per week, or some such marker, and a second e stand for collectors only who are selling a piece now and again.

Although Skynyrds idea will also help.