Despite making his Dive into HTML5 book free online, people are still filling Mark Pilgrim’s coffers with cold hard cash for hardcopy:
I write free books and people buy them. It works out surprisingly well.
Hey e-book industry, listen up. We’ll still pay for hardcopy if your book is any good, so how about charging a lot less for the unshareable-DRMd-device-dependent-untactile e-copy.