Any interest in early drafts?

I have the DNSSec book about a third done, which isn’t bad for spending a week in the hospital this month, and am looking at various publication options. Once the book is finished it’ll be available in print, on Amazon, Barnes & Noble, Kobo, and hopefully iTunes. But I have an option for before the book is complete. LeanPub allows authors to upload works in progress, and update them as the work proceeds.

I’m pondering something like this:

Offer the incomplete book on LeanPub at, say, a 20% disc...