AbeBooks buyback program is actually run by TextbooksRus. They have blocked access to the BookScouter website, so their pricing is not available on this site, but it always matches exactly what TextbooksRus is offering. I'd recommend avoiding the extra company and dealing with TextbooksRus directly.
Our mission at AbeBooks.com is to help people find and buy any book from any bookseller anywhere. We provide you with essential services and opportunities not available to booksellers through any other listing service AbeBooks is the best venue in terms of price and value for selling books on the internet.
Suite 500 - 655 Tyee Road
Victoria, BC V9A 6X5