I purchased my refurbished Kindle Klassic (original Kindle) as an early Christmas present for myself.
I got the original for 3 reasons.
1: SD card slot for additional storage and organization.
2: Replaceable battery.
3: Price ($150 for the refurbished unit)
All in all, I am extremely happy with the Kindle. It traveled with us on a cruise vacation a few weeks ago, super convenient.
Tons of free books are available, lots of them by new and independent authors. E-book technology is a boon to unpublished and wanna-be authors.