It may be a morose subject, but it crosses my mind every so often.
If something happened to you, and every bit you leave behind would matter to your family, would they know how much your gear is worth? If there is plenty of money to go around, who cares.....but if not?
I've thought about making a list, with a description of my gear, and how much one should expect to get for it used, and where to try and sell it, but I have not done it yet.
Some of our families might know what it's worth, but to some a Hilleberg tent, or a cuben shelter, would look the same as a Costco tent, and could end up in a garage sale, or just molding in the basement.
I know that some don't really want the family to know how much they are really spending on this, but would it not be valuable to leave that information behind?