Most of the people who try out my Kobo say it is much easier to read than a backlit screen, perhaps different eye problems are better with E-ink. Do you use enough light when you read? E-ink works better in the type of lighting that suits P-books, it's really good in bright sunlight and living in a place where we get lots of sunlight this is a real plus.
I guess the map says it all! Australia really is sunny!