I thought this was interesting given our recent conversation about technology and e-readers. It's purely from a financial point of view. http://finance.yahoo.com/family-hom...e-books-worth-the-money?mod=family-love_money
Well, my eReader is loaded, and there are only two books on there I paid for, and one is a bible translastion that was cheaper in e-format. The other was privately published. All the rest: Project Gutenberg, Google Books, archive.org. We build our schoolwork around OFE, so that gave us a great spine we've worked out from, for me & the kids both.