I wish I could have ALL my books in ebook. I love it. But it's definitely a personal preference. The only advice I have, and not knowing what your package entails, is that where you get ebooks MATTERS. I started out with Kindle books through Amazon and fortunately they took returns on them because the format was awful. All my nursing books are through http://www.kno.com and they are page for page like the real books. If I'm in class, I can turn to the same page the instructor give outs, which was not the case with the Kindle format for my particular texts.
Problem easily solved if she has a backup device or can easily replace the tablet/computer. Ebooks are attached to account, not a device. I pull up my kno books on my tablet, laptop, and chromebook and I only had to make one purchase.