The book is old analog. It's technology is without a doubt, one of the most important items in the human catalog.
Books are the enablers. The perfect informational passing device.
Almost always a perfect gift.
Books are not CD's. Books are not DVD's. Although, people love to include them in there analogies of the death of physical media.
However, those forms were never necessary to the origins of their own particular media. Cinema needs other devices for transmission. Music the same. These forms always change. In many ways, and even with hard earned consumer consistency, they are not standalone. How many music delivery systems have come and gone?
The physicality of a book includes all of it. The written word was always meant to be passed along, in it's final form. it duplication is always scaleable. Not from the beginning of course, but still, it could have been duplicated somehow, with errors, money and hard work.
And even though, the scalability of music and cinema can lend itself to other product forms, they will never be perfect. Because its delivery origins are not seamless. Music has always been a live format. Cinema, was birthed in exhibition. One ticket, one play. No pause, reverse, repeat.
The book, in it's final physicality is the delivery. It's a perfect system. Yes, it can have an uglier digital counterpart, but it's essence is it's form. And, only for environmental reasons would it ever go away.
But, that CD you're holding, or that Criterion DVD you just bought, or that new XBOX game you stole, well, that's not going to be around. So, build your collections now you geeks and nerds. Show them off to your kids, who will marvel at that lo-fucking fidelity that you and I loved so much.