I’m addicted to collector books. Our library of these books has well over one hundred different copies–some purchased early on and proved to be too broad and not deep into any one subject. I soon learned the value in spending money on great books. By now, many are well worn to the point of having loose covers, and several have been replaced with more updated versions. Most of these books have price guides, but with an ever-changing market, I only use the prices as a loose reference, adjusted for current trends in collecting and the economy.