I wouldn't say that Sir Charles. First you have the book in hand, can thumb to any chapter/page at will. Personally, I hate having to read a magazine or book using a pdf or what ever format on a screen, scrolling through a mired of other pages trying to find what I want either forwards or backwards. Why I haven't bothered to obtain or read any books by Kindle or listen to them via any electronic means. Second, at $45 dollars, the book has doubled, tripled its value since you've received it twelve years ago. And third, you've been enriched and informed for the last twelve years of all the information in the book while some of the rest of us are just being enlightened and informed. I'd count yourself blessed!!! I only read it on pdf previously because I had no further access to it. Wish I had known about it back when I got interested in conversions.