An old HP 1630D logic analyzer.
Recently one of my lovable nearly-grown-up kittens discovered that the pod flying leads of my old 1630G were fun to cut with his very sharp teeth. I caught him after he'd neatly severed only two wires, but damn... Those wires are special. Fine, very flexible, with brightly colored teflon insulation. I repaired them, but this reminded me I have no spares for that machine, other than a small stock of ECL chips.
Ventured into ebay meaning to buy some spare pod-lead sets, but instead found a whole 1630D. Looking good, working. Got it for $15. But the shipping, arrgh! Anyway, it's here now and works. It's amazingly pristine, for something so old. Very light dusting inside. All metal inside and out still looks new.
Now where am I going to keep it?