Absolutely--the books still have top notch content.
I have Simply SQL as well but I never noticed. It's likely I read the entire book from the PDF and that's why I never noticed.
At least the digital version is full color and that will likely be the only form factor I'll purchase these books in moving forward unless it explicitly states it will be in full color.
I can print it out in black and white and throw it in a three ring binder for those days I prefer a hard copy.