I have a bunch of euro mounts, and I'm honestly running out of decent space for them. There's two euro elk in the living room, two in the shop, and one more I haven't even put up yet from 3 years ago. My wife and kiddos like having them around, and I like telling the stories and telling others that don't hunt about the memory and the stories that get reinforced by the mounts being seen and talked about. They're the physical presence of a memory, and if you weren't there when it happened, it won't mean much to you.
I intend to keep a few around for as long as I can, but eventually I'll let the four of my kids pick from them if they want any and tell them to sell the antlers and split the cash of what's left. I'll ask them to do something memorable with the cash, but I won't have control over it.
When we go to antique stores back home in WI, I'll wander around looking for old mounts and skull plaques. It's pretty cool to see how far back some of them go and wonder what the story was. Some of them are inscribed, some it's just a date.
The conversation does remind me of my grandfather's antique woodworking tool collection that he had amassed over decades of garage and estate sales. He ultimately realized that he could have just as much fun selling it off as he did collecting it, instead of leaving it to grandma to deal with. I have a few of his tools that now decorate my office as a reminder of him, but I didn't need 500 hand planes. Harder to do with the mounts, as the market just isn't there, but could certainly be done with a gun collection. I'd rather sell one to another hunter or collector and see his eyes light up, than leave it in a safe and wonder what will become of it after I'm gone.