Buy Or Borrow? With Amazon's Entry, eBooks Subscription Services Are Hot

Books were never bundled in the way that songs were. It didn't make sense. They were never restricted to a single broadcast channel, like TV networks and later, cable. Okay, short story collections are sold as a bundle. But no one thinks that short stories represent an MP3-style opportunity. It's easy to access single chapters on Safari Books Online (owned by O'Reilly Media), but Safari's pricing uses an all-you-can-eat model of monthly and annual subscriptions.