I started out with a Kindle Keyboard and still use a PW2. I like that a mere twitch of my thumb will turn the page. If I have to go back a page, I have to
lift my left hand - the effort is exhausting! - and turn the page back. Not to mention the inconvenience of needing to put down my beverage or sustenance of choice.
Watching The Husband read is a bit of an amusing and eye-rolling experience for real. He likes to put his free arm down as he reads, then lifts it, makes a pointy finger, and *pock* taps the screen to turn the page. Every few seconds...*pock*...