My local coin shops sells unsearched lots on
ebay. He says that he doesn't have time to search the lots and, judging by the volume that he takes in, I believe him. Unfortunately he also gets a lot of his poundage from tollbooth rejects, so there is a lot of duplication. In particular, it appears that Dominican Republic 25 centavos are accepted as quarters at tollbooths, because his bulk lots have an abundance of them.
On the other hand, his junk bin always has some good deals if you are willing to look. The coins are all in 2x2 flips and often has quite a few proofs (something that is rare in
ebay bulk lots). It just takes time to search through everything.