There's probably an age factor, there. I had my parents in mind (and a very large number of similar user type), and they all want to print documents, often to store them in paper rather than electronically.

Again in my experience, no stats or solid data to support anythink here, younger basic users will indeed print less, but still use their laptops to create documents of sorts, collect thousands of pics, di basic editing to them, create presentations, etc. So, even there, compared to PCs (laptops), Pads are still presenting some signficant limits in terms of software available, cpu power, storage space, and users seem to me to behave accordingly.

Yet, I may be biased, as I am mostly (only?) familiar with basic users in academic environment.

Also, I think that as Pads get more powerful and increase their storage capacity, things will change to some degree.