People have always had the option to read books without buying them. In those days, going to the library was effectively the same effort as going to a book store. In fact, it was more convenient for my family. We happened to live a few blocks from the library and didn't need to drive across town to the mall to get books in dingy little B. Dalton bookstore.
I will grant that the economics in the eBook situation are dramatically different than with physical books, but I really wonder how different they really are. Local libraries already lend ebooks as well. I'm not sure why more people don't take advantage of that.