Upvote:0
The first search result that showed up gave me this PDF... and it has the full preface.
Upvote:1
Although I do not know what you consider to be prohibitively priced, as of today, 6/7/2016, abebooks.com has a used copy for $34.95 plus $4.00 shipping. If the book is as scarce in hard copy as it appears to be, this seems to be a good price.
Upvote:1
The complete Saints & Psychopaths is available for free as HTML and epub here, https://github.com/eudoxos/saints. This includes the pages in the preface missing from the PDF copy.