It's not as prevalent or widespread, no, but it sure as hell is already a reality. Especially for comic books, a 5 minute search can typically yield complete collections of comics pertaining to whatever character you feel like reading for a while, and then with a handy program called CDisplayEx, you can read them page by page with great ease, even turning the image 90 degrees to get a larger image on your screen.
The tools are there, the materials are there, it's just that the community isn't yet, and neither is the awareness of the piracy.
General rule. If it could be pirated, it can and will be pirated. No exceptions.