That sounds so cheap to me. My 11th edition of Encyclopedia Brittanica cost maybe $4000, and I have to do maintenance to fight off dust mites and red rot. But it looks very good, and it's widely considered the best Encyclopedia. Apprently Wikipedia started out as a project to digitize 11th Britannica. It's public domain now, so you can read it on your phone free if you're interested in ruining all the charm.