A Market Under Pressure
For consignors the issue isn't whether you get your money back. It's what you are going to use the auction's proceeds for. In the current, and in many respects, deflationary environment, a dollar invested in books ten years ago that simply nets out as a dollar back today is not such a bad thing. These days dollars are more difficult to come by.
Here is a link to three graphs on Trends in Book Auction Prices.
These graphs are updated monthly and accessible via the Upcoming Auctions link on the sidebar menu.