Note that it is also a reader that has:
- advanced font handling
- the ability to sync Kobo kepub formatted books over a wide variety of devices using Kobo apps
- On device purchasing
- WiFi
- Sharing to Facebook, if you want it and then all the time or only when you want it and make it happen
- Annotations, including highlighting and notes
- Reading life
- Awards
- Touch
- An SD card slot
Some folks (including me) would say it is far more than a simple, basic reader. If the ability to create bookshelves is the single most important feature for you, then buy something else, or use the hack for this feature.