Thanks for the support, guys!! =D
Originally, I wanted to provide options to buy either the digital version, or a bundle of digital and paperback. However, the just-in-time printing service that I used (and I didn't find any better) didn't make it possible to create such a bundle. And they also didn't provide a way for me to grant a discount to people who purchased the digital version (e.g. via a code I could have included in the digital version).
Thus, I had to set up that two-step approach. But even if there had been a direct option for the paperback, it wouldn't have been any cheaper as what you pay now when you combine both versions. Print-on-demand is simply expensive, and anything else is just not feasible for me to handle.
Shaun, the Black Friday offer is now over — but if you change your mind, just send me a PM, and I'll see what I can do. 😉