1) If a book is interesting and its priced around 15$, I would purchase it no question asked.
2) I hope you can release a EPUB/Mobi version of the book in the future and make it available to people who bought the PDF.
3) This might be pushing it but if someone has purchased the ebook and wants to get the paperbound after certain period of time, it would be sweet if you can offer major discount on paperbound for those people (look at Oreilly for an example)
4) Similarly offer ebook version of the book with the paperbound copy, almost every publisher does it these days.
1) If a book is interesting and its priced around 15$, I would purchase it no question asked.
2) I hope you can release a EPUB/Mobi version of the book in the future and make it available to people who bought the PDF.
3) This might be pushing it but if someone has purchased the ebook and wants to get the paperbound after certain period of time, it would be sweet if you can offer major discount on paperbound for those people (look at Oreilly for an example)
4) Similarly offer ebook version of the book with the paperbound copy, almost every publisher does it these days.