I am a sucker for new editions of my favorite birding guides. Every time a new edition of the Sibley, Geographic or Peterson's hits the shelf, I have to have it. Not sure why, but it works out, nicely, since I usually have the old edition tattered and worn by then. I suspect it is because I love the artwork, that's why all my guides use illustrations, rather than pictures. I keep my old birding guides, of course, and still have my first Peterson's to this day, a '47 edition if I remember, correctly. I am a bit less sentimental bout my
birding binoculars and tend to sell one to buy another, but
birding field guides I keep. No one would want one of my old birding guides, anyway, as I am fairly liberal when it comes to marking them up with notes and so on. Kind of fun, though, to pull an old
birding guide off the bookshelf and thumb through it to see what I wrote so many years, ago. Makes for a very pleasant birding trip down memory lane.