Aah, nice. Your sarcastic statement is only valid if you believe a book is nothing more than it's physical representation. As a "collector" I suppose you have that materialistic world view. A book is an idea. Once that idea is out there, you _cannot_ destroy it. That's why I laugh at book burnings. Burn them all you like, the idea is already loose, and you cannot control that.
I have hundreds of digital books, I spend hundreds of dollars a year on books, and if my digital copies were to vanish tomorrow, so what? I've read the book, I have been exposed to it's idea. It has already changed me. Sometimes I want to read it many times, so I would prefer it not disappear, but most times, once is enough.
Your materialistic ways come from the concept of scarcity. That concept no longer exists in the digital information world. There are more authors writing and releasing books today than ever before, and those books can have infinite copies. I will never run out of new things to read.