As I asked in a less-active thread, would a printed collection of the blogs be appealing to you?
short answer: yes.
long, and inevitable in its occurence from me, answer:
I'm not likely to by any of the comic compilations in the near furture, because i can't justify (to my current circumstances[lady]) a purchase of something i have free access to.
As such, a book of blogs would not be easily purchased by me. However, Only Available in the Blog Book artwork of characters in context of events would certainly "sweeten the pot".
For instance, a small drawing of Mr. Bear landed on a cooked pig surrounded by the text of his most current blog, for instance.
Ordinarily, i am not a fan of illustrations within fiction, since my mind's eye always captures what i'm reading far better than some per-drawing hack.
However, 1- Onstadt is not a per-drawing hack that poorly illustrates Roger Zelazny novels, 2- The fiction of the Achewood Blogs already has illustrations. and given that the illustrator would be the author, the validity of the drawings interpretations of the text would be entirely, uh, validated.
I am thinking right now of Tolkein's Letters to the North Pole. The Letters are of a somewhat blog/diary like nature, which evoke colorful and fanciful imagining of what is going on. The illustrations help to bring those out, AND keep honest to the writer's vision because the writer is the author.
Add to that, the extra "exclusive" content the book would then contain.
Witness the sale of your one-off painitngs on ebay. there would appear to be a demand for your non-strip oriented artwork of the strip based characters.
Illustrating the blog book could potentially give you an "Artistic outlet" for the achewood universe outside of the comic strip context.
It would, of course, add a great deal of "Work" for you to do.
All that being said, i have to say a text only release of the blogs would be a delight, because as i've said before, the distinct voice you give to each character is truly a beauty to behold. your illustrations are incredible but your dialogue and story and voice is wonderful as well.
i would also venture to say that i do not believe there to be enough content currently in the blogs to flesh out a purchase worthy compendium.
i hope you are not looking for enough "yes i would buy the blog book" sentiment to justify your continuation of the blogs in and of themselves, since the thought of losing the blogs saddens me.