On the other hand, I can get any book I want, including long out-of-print books. I remember years looking for a copy of Clarke's "The Deep Range". Now getting a copy is as trivial as pushing a button.

And I have indulged myself, acquiring a small mountain of books :-)

I also browse the books at thrift stores. It's how I've obtained a ton of strange books I never would have discovered otherwise. For example, I found an encyclopedia of electronic circuits I never knew existed. Goodwill is a book gold mine, I wound up getting a nearly complete set of the Star Trek novels (and cheap as dirt, too!).