Fired, you reminded me of another onerous "collectible"...formal china, crystal, and flatware. My own wedding stuff is collecting dust, and Mom asked me to take hers as well. I have a friend who is stuck with four sets from her parents and grandparents. Unused, but hard to just take to Goodwill because of the family connection. She's moved three times and had to carry boxes and boxes of these items. At least I've technically got the room to store this stuff, but I don't see too many formal gatherings in my future entertaining plans to use it.
I doubt any of it, except the sterling flatware, has any resale value. And the Millennials I know don't even register for formal china any more. They might request Fiestaware or some other durable every day china, but long gone are the days of going to the department store for $50 stemware as a wedding gift, at least in my circle.