I'm just the opposite. One of the worst things about vacations was having to carry along all those books or take a detour to a bookstore (if there were any) to buy more. Now I just carry a single small e-reader. It's a great savings in terms of cargo space.

I don't consider an e-ink reader very complex. You charge it once in a while, download books to it once in a while, and otherwise it's basically a book except it remembers what page you were on.