At the very extreme ends of the spectrum this becomes obvious: the story of finding a magic pebble which turns you into a rock, while an excellent story, is not a good story for being of use to your fellows.
@Julix Not my favourite Steig book (that's probably Abel's Island or Mr. Blandings Builds His Dream House--despite the latter being written by someone else), but an interesting one to read in light of the adaptation(s).
Somehow all this looking at feats and strange solutions for my child rogue gave me cool ideas for future characters, and while I was looking at paladin dips I found a link to the Oradin. It's basically a healbot minus the bot. I like the idea of in combat healing but I dislike the idea of a player having to waste precious standard actions to do so (because it gets boring fast. yeah, I heal again...)