The previous generation of high end Iris Pro graphics (The 6200 seen in some HTPC-oriented Broadwell parts) had very good performance for price. It matched or beat the performance of the Nvidia 940M in numerous real-world and synthetic tests. It even turned in decent performance in GPGPU tests. For a laptop or a small form factor living room PC, the Iris Pro can't be beat at the moment.

I prefer hardcovers and trade paperbacks with high quality paper to ebooks. I prefer DRM-free ebooks to cheap paperbacks. I prefer even the nastiest paperback to an ebook with DRM. That said, ebooks travel better than high-quality books, so it's often worth having a second electronic copy for travel purposes.