I love audio books, but I especially love audio books read by the author. I wish I could get Mary Greer's or Rachel Pollack's work as audio books - it's something about hearing the author's inflections, their tone and different emphases.
I love being able to work while I listen to a book. As a complete workaholic, and someone who works with images - listening to an audio book while I push pixels means I can use two bits of my brain at once. I know that sounds a bit weird, but I just work better if I'm being engrossed on two levels simultaneously (I'm a Gemini).
But even if you DON'T love audio books, this is something special.
Dan, as others have mentioned, is an orator. I'd pay to get him to read the phone book for me, his voice is like honey. Anything he says is fascinating because there's so much Dan in the way he says it and Dan is such a compelling human being.
The content is wonderful too. All the things I wish someone had told me 20 years ago - this would be a wonderful present for someone starting out in tarot. As others have mentioned though, it's also got something for us 'old dawgs' - a few new tricks it's not too late for us to learn.
If you're sitting on the fence about buying this, then you obviously don't know Dan. Since I live on the other side of the world, I wish I had a recording of every conversation I've had in person with Dan, I'd replay it again and again. And that's what this audio book is like. It's not a 'book', it's a conversation. And he makes you feel part of that conversation.
I don't think a traditional book would be as good. Perhaps a purpose-made journal with dot-points of what he talks about. As people have said, you could do this yourself - but I think as a companion product that would work too. Or, a video. Handheld camera, walking around his garden like you were there with him. And one extra thing that would add - his eyebrows! Dan's eyebrows are so expressive when he speaks, although I think I could hear that in his voice anyway on the audio book
I bought the mp3 version - it's cheaper and also better for the environment since it uses less disks. I'll be sure to back up the mp3s in case I scratch the disk, as I know this is something that I'll listen to again and again.