All the PDF purchases I've made so far have been for PDF only products. Whilst I've printed them out, I still prefer a book when the choice is available: but in this example, the book isn't. SoI guess I'd answer Yes, assuming I can get my boss out the office long enough to print it. :>
However, as others have mentioned, both price and DRM are a factor I'll have to consider. No matter how much I want the product, the extra time, hassle & cost in printing and binding it up so I can use it at the table (I've tried using PDFs on a laptop at the game table, but didn't find it suited me) means I won't pay a print book price for a PDF: and whilst I understand why companies might want some sort of control over the PDF, I've got minimal patience for DRM, especially when it might mean that a computer crash would require me to buy it again. No matter how much I wanted the product, these tyhings might turn me off.