It honestly drives me crazy too. I have pretty much stop browsing ebay for marbles. No matter how I search, I have to wade through listing after listing, page after page, of Jabos. Not knocking Jabos, but I ain't interested and its frustrating to search through 200 pages of marbles for what should be 50 pages of vintage. If I want to just browse say Christensens, its not so bad; but trying to find a fun lot of something that might be overlooked by others is just too damn time consuming anymore.