Wow. This is through Daedalus Books, who deal with quality remainders and the like. Always makes me a bit squeamish to see fine stuff like this on overstock/remainder, but a great opportunity to stock up!

Most of the titles are listed there are $6 or $7, and there are some great ones along with the more obscure/specialized ones (that are no doubt great as well).

There's a post here by David Horgan from S-F in October 2009 about what they're up to: clicky (more on-demand production).

~ Becky in Tucson