Certainly worth less than sound original barrels, Ted. After all, sleeving is a pretty big departure from "original", and anything that big (unless it's to restore a really sad case as close as possible to original) is going to result in a lower price. Not to mention that you can't buy a set of new barrels for what you'll pay for sleeving, so obviously it's worth less. Doesn't really have anything to do with whether people WANT sleeved guns, however. It's just that if they know anything at all, they also expect to pay a lot less for a sleeved gun.