Thanks for the info!
I do buy some knives that I choose not to carry after I purchase them, but rarely do I purchase a knife with the thought "I'm not going to carry this one, it's just for the collection." The only exception to that - for me - is doctor's knives with spatulas. Some of those I purchase with no intent to carry.
However, I have knives that I have carried and used quite a bit, that still look great and function well and that I would be confident to list for sale as "Used - Very Good Condition" that many people would be happy to get at the price I would offer them for. I almost never buy knives with intent to resale - however, if I hadn't already sold some of the knives I've bought in the past, I wouldn't be able to afford to continue to purchase as many as I do.
The photo that was shown of the Navy knife in Old Barn Chestnut after just six months of carry was shocking to me. I've never seen anything like that! Certainly not in a knife that costs more than a few dollars. Since I have no experience in treating or stabilizing wood, and don't wish to experiment on mine, I will be moving on from it. I'm confused on how to proceed, though - I don't want to pass it along without a warning to the buyer.