eBay has given us the tools to eliminate auctions that are not of interest, Steven. It's not necessary to have a listing category for every type of collectible to limit what you look at. In fact, the more finely the categories are divided, the more likely it is that a lister will not bother to put his auction in the proper place.

Check the posts on this bb for several approaches to building 'filters' to eliminate the type of material you don't want to look at. It works fine for me.