Slide #7 is my friend's museum in a tiny little South Texas town (Wharton). I was surprised to see it on CW.
If you have some interesting stuff taking up space in your garage, send it to one of these museums. If you miss the old junk that you've thrown away, go visit one of these museums.
If you're in Europe and the legacy tech is videogame-related, you might consider the Computerspielemuseum in Berlin: http://www.computerspielemuseum.de/
I have a Texas Instruments 8086 PC and printer from 1980-81 that I've been trying to determine what to do with. I wonder whether that's exciting enough for them?
The Twentieth Century Tech. Museum in Wharton http://20thcenturytech.com/ has tons of computers (well, maybe just a ton). More than they have the room to display or store. But feel free to contact them, or any one of the others.
They have earthquake resistent storage for the Keystone-Mast sterogram collection of master glass plate netagives.
Pacific Pinball Museum also also pretty cool http://pacificpinball.org