I feel the same way about touch screens as the OP. I like my K3 because of the page turn buttons, mostly because of fingerprint issues. I know people have said that fingerprints don't show up as much on the e-ink screens, but I am skeptical (or maybe I just have sweaty hands).
However, I think the quest for buttons is a losing battle. Many people on this forum have said they didn't expect to like the touchscreen as much as they did. I am very tempted by the newly announced PW because of some of the software improvements and the improved screen.