Personally, I don't want my pipe, or anything else for that matter, drooling on me. OK, maybe a dog. But nothing else. The answer to your question is, absolutely, there is a value, but nobody wants to bother with it. We prefer to spend hundreds of dollars on gorgeous grain and carefully wrought shaping so that we can deface it. This makes us masters of the universe, and allows us to deny future generations an opportunity to enjoy a pipe from this period in any but crappy condition. There is nothing more satisfying to the male than to prove our superiority by incinerating small, but costly bits of wood, or chewing up bits of carefully shaped rubber. A pipe is a tool, period. There is no art in it. There is no art to it. That's why only idiots spend any more than they have to on grain, shaping, or any of that superfluous crap. Got a beautiful display of birdseye on the rim? Get out that acetylene torch and show it who's boss! Until you understand this basic fact, you will never be a man!