I love it!
I've got a 16K plane of core (well, you can't see the cores - they're behind a metal plate) on a PCB hanging on my dining room wall. I also have a really old chunk of core memory "sandwitch" which has the cores exposed (its a sandwitch of bakelite frames, each frame having the cores - its missing all the control components, and some of the frames are damaged, a few missing - the cores are nice and fat on it though, easily viewable).
All you have to do now is get the density up some...LOL.
