CaptKJaneway, I am doing the same, searching and buying books I want on my K3. I'm especially trollingn for stuff in Sci-Fi/Fantasy that are 99 cents to 7 bucks.

I have so many paperbacks that I have to read, but I might spring for some of them on Kindle format just to get the larger print for my 50 year-old peepers.

(My reading glasses gives me a rash....and I've tried all types...cheap to expensive...hence my switch to e-readers 3 years ago.)
I'm eager to see how the K3 performs.
For now, I'm reading on the Kindle for PC while I wait.