Look, a lot of what we think is important or valuable just don’t have good resale value. This is true for most everyone’s estate. If you ever go to estate sales, you see a combination of stuff going for cheap or just being overpriced and sitting there. That is true for furniture, art, electronics, collectibles or whatever unless there is some specific market.
I would suggest doing some research on sites that sell used equipment (if your wife isn’t going to keep the stuff) such as here on Audiogon or USAudiomarket or something like Hifishark and getting an idea of how fast or slow stuff sells and what price they sell at.
The best way to deal with items that are high priced but not highly valued by most people is to (1) discuss it ahead of time with your heirs to determine interest in it or what will be done with the items after your demise and (2) let whomever is going to handle your estate know what to do with the items whether it is to list it on the used market or donate.
Discussing things openly with your family/friends etc is usually the best way to figure out interest and willingness to deal with things on their part. It allows you to make specific arrangements in your estate plans for these things.
If it isn’t clear, I was an estate lawyer and dealt not only with estate planning but all the litigation entanglements after the fact that could have been prevented with some preplanning and actions.
