I love love love my Kindle, I download free books from my library and Amazon all the time at any time of day or night. And yes, I also purchase books. The books stay on my digital account and I can access them regardless of the platform I'm using (pc, Kindle, phone, etc.). I also love audio books; my work commute and chores go by in a flash as I listen to books.
Having said all that, I much prefer to read hard or paper copies of quilt patterns, magazines, and books.