For all you cookbook collectors I just read this article by Russ Parsons (LA TImes). It mentions a website for vintage, rare and used cookbooks!
http://www.cookbookvillage.com/"...signed first editions of my favorite authors. They've got a flickr gallery of signed frontispieces and dust jackets. And so it goes.
There's a blog about cookbook collecting that's a lot of fun to page through and in November the website announced that it will soon start selling books (it already has an EBay store)."
Nance