Bookstore — ebook vs printed book, both?

Is there or will there be the possibility of purchasing both the printed book and the ebook at the same time, (discounted price) for those books that are offered in both formats?  I’m a hold-the-book-in-my-hands kinda gal, but I have to pack up my homeschool and move back and forth 200 miles every few days, so the ebook option would be nice to save on car space.  It would be a bit unrealistic in my budget to buy both formats at full price (and my husband would think I was crazy).    Just curious.  Thanks!