Just wanted to say that using the queue again today, I am still getting repeats more often than I would like (Ganda comes up a lot, along with a bunch of other more common things that just don't have any listings right now) but I am definitely getting enough new items that are listed that I can keep working through the queue for a long time, I think.
I think it helps a lot that there are a ton more items that have at least one price entered now--when I last used the queue it was right after the addition of items and so a lot of them didn't have anything yet and couldn't show up. I manually did a whole bunch (just getting a price for something, then clicking one of the nine random related items at the bottom of each page--this gave me a nice broad selection of weird stuff!) but it is clear now that a lot of other people have done similar things.