I do the same thing. Wait till they come out in the cheap paperback. And have about the same amount as you. At our last house I had them on rows of shelves, sorted by author and date written (gotta start taking pills for this OCD). Now my wife won't let me put them up in our new abode, so they're in boxes in the basement. I could have a heck of a garage sale, but don't want to give up my security blanket.:err:
Do you go back & reread favorites? I had to replace my favorite book because the pages finally started falling out of it. It was a couple of bucks at Waldenbooks the first time I bought it. It's categorized as "mass market" now so it's cheaper than new books, but it's still over $8.