Joe,
I don't know what you do for a living however in my case
This is the here and now. I am an engineer for Honeywell and I may and I mean may print a piece of paper once a day. I don't even have a filing cabinet in the traditional form anymore. All our correspondence and designs are electronic in one form or another. The majority being ProE files, PDF's and email. I check my surface mail box once a week maybe, usually empty.
I do not own a Kindle and do not intend to buy one until the second generation of this type device start to appear. I do have the app on my phone. No books yet cause haven't seen anything I need.
I have a fairly large library of books here at home that I have gathered over my life like many others and if they were all converted to electronic enhanced versions I would sell them in a heart beat because instead of the library being on the shelves it would be in my pocket and instantly avaiable for research. Instantly search able for that word, phrase or name that I know is in there but can't remember what page.