PDFs are NOT more expensive...
I couldn't let the comparison go without trying one of my own. I grabbed 5 "print" books and 5 PDF "books," trying to select some representative samples to find out which one really is "cheaper." FWIW, I selected PDF products that I considered among the best ones out there (quality-wise). Oddly enough, all were well over the $5 mark in price (a bit of a surprise to me, I must admit). Note that Forgotten Heroes: Paladin is currently on sale for half off (I used "sale" prices that default to "regular price" since the sales seem perpetual on all the other ones) , so that would improve its standing below considerably.
Anyway, I'll name names - here are the products I used...
Defenders of the Faith (WotC)
Masters of the Wild (WotC)
Encyclopedia Arcane: Demonology (Mongoose)
Dungeons (AEG)
Mithril: City of the Golem (SSS)
Librum Equitis Compiled (EN Publishing)
Forgotten Heroes: Paladin (Maladin's Gate Press)
The Book of Eldritch Might 3 (Malhavoc)
The Banewarrens (Malhavoc)
The Enchiridion of Treasures and Objects d'Art (S.T. Cooley Publishing)
We will rank them first by cost/page, going from lowest to highest.
1.) Librum Equitis Compiled - 6.8 cents per page (117 pages, $7.95 price)
2.) Enchiridion - 6.9 cents per page (144 pages, $10)
3.) Banewarrens - 7.8 cents per page (128 pages, $10)
4.) Book of Eldritch Might 3 - 9.4 cents per page (96 pages, $9)
5.) Forgotten Heroes: Paladins - 10.2 cents per page (64 pages, $6.50)
6.) Mithril - City of the Golem - 16.3 cents per page (110 pages, $17.95)
7.) Dungeons - 16.9 cents per page (118 pages, $19.95)
8t.) Defenders of the Faith - 20.7 cents per page (96 pages, $19.95)
8t.) Masters of the Wild - 20.7 cents per page (96 pages, $19.95)
10.) Demonology - 23.4 cents per page (64 pages, $14.95)
AVERAGE* PDF COST PER PAGE: 8.2 cents per page
AVERAGE* PRINT COST PER PAGE: 19.6 cents per page
*Computed by averaging the cost per page for each product, not by summing total pages and total product cost
Note that the average cost per page is more than double for print products - it is in fact 2.4 times as much! IMO, that tends to discredit the argument PDFs are "too expensive."
Similarly, we can compare cost per word.
1.) Librum Equitis Compiled - 0.0094 cents per word
2.) Banewarrens - 0.0105 cents per word
3.) Enchiridion - 0.0109 cents per word
4.) Forgotten Heroes: Paladin - 0.0122 cents per word
5.) Book of Eldritch Might 3 - 0.0129 cents per word
6.) Masters of the Wild - 0.0252 cents per word
7.) Mithril - City of the Golem - 0.0257 cents per word
8.) Defenders of the Faith - 0.0264 cents per word
9.) AEG Dungeons - 0.0282 cents per word
10.) Mongoose Demonology - 0.0388 cents per word
AVERAGE PDF COST PER WORD: 0.0112 cents per word
AVERAGE PRINT COST PER WORD: 0.0289 cents per word
No big surprise there, either - the ratio is 2.57 to 1 in favor of PDFs.
You can argue a lot of things, but please don't argue that PDFs are more expensive. They are clearly LESS expensive, on average, by a considerable margin. Even if it costs you 10 cents per page to print and bind a PDF (i.e., 20 cents per page for double-sided), that's STILL just 18.2 cents per page compared to 19.6 cents per page for print... and that's a fairly high printing cost estimate, if I'm not mistaken. YMMV.
Just trying to put everyone in possession of some incontrovertible facts here.
Some of the other points raised ARE interesting ones, and I'm trying to envision to myself how I might incorporate bells and whistles cheaply, but I think it's a point of fact that a PDF is, on average, cheaper than a print product, at least if you want to count "per page" or "per word." Obviously, they're empirically cheaper.
--The Sigil