A bunch of loose paper in a folder? No offense, but I'll pass on that. Too disorganized, easy to lose the one page you need. No index, etc.
I'm not worried about it getting too messed up, I keep my garage immaculate. I don't mind getting some greasy fingerprints on it, not a big deal.
What I do mind is getting into a job and realizing that I forgot to print a section I needed and having to go in the house, wash up, go to my home office, track down the relevant info, print it out, and get back to work. When I'm working on my cars, I just want to get the job done with a minimum amount of fuss. I just find electronic documentation to be a hassle, and want to find a real bound copy (of the Mazda manual, not a Chiltons or some other BS) to keep in the shop.
To each his own, I guess.
For those that care to know, the dealership charges 70 for the manual, and it takes about 2 weeks to get in.