Used smartphone for the win! (I actually bought a used, deactivated smartphone as my preferred eEverywhere device -- the only reason I didn't suggest this was that they tend to be a lot more expensive on the secondhand market than non-phones.) I absolutely think this is the optimal one-device solution, as a) small/light, as you say; b) you can do other things on it besides read books -- for example, I have all my text notes synced between my device and my computer; c) camera; d) no monthly charge :)

And you can't get better than free :)

I don't mind the small form factor for reading on things like transit because the page turns are very quick, though I usually use the kindle when reading books at home; the e-ink is easier on my eyes.

But to answer your other question: yes, I did get used to the kindle paging, to the extent that when you asked that it took me a minute to remember what you were talking about :)