Ebay is great, because you reach most of the really hardcore collectors of unusual items that way...and they will pay what the thing is worth.

I'll give you an example. I collect scale models of airplanes. So do a few other people...maybe half a percent of the adult male population...maybe less than that. I have a couple of rare 1/32 scale models of a Japanese fighter plane here that I bought once for about $15 each. If I take them to a local hobby meet, I might get $40 apiece for them if I'm lucky or I might get nothing at all for them...but if I sell them on Ebay, I will get about $300 each for them from collectors who know what they are. That's because Ebay reaches the entire world.

I've never worried much about the commission fees. They're pretty low.