Chris – There is the issue of distribution for your book. It took me weeks of nagging to get hold of it!
What’s needed is a small-press version of Rough Trade distribution along with a network of venues able to sell booklets at £3-or-so each.
Now, if only there were a network of shops that were used to selling £3 booklets that needed to diversify:
http://www.comicbookresources.com/?page=article&id=20531