[NoMoreNicksLeft]

Books are among the smallest (complete) media I own. Even a single album weighs in heavier than all but my largest books, and even with the largest those only just barely exceed the smallest of albums. They're easy to store, I won't later want a "higher resolution" book. Easy to organize (and it will only become easier... I expect technology/software that will allow better indexing in the near future). The books I keep now can become my family's library, shared and copied as my family becomes larger and more distant in the future. Immune from DRM or copyright regulations, invisible to anti-piracy efforts, and ever growing.

They don't even print the books I'd want on the kinds of paper that would last more than 20 years, and I can't afford the sort of museum-level-preservation effort it would require to take advantage of that supposing they did.