I got hold of an old IBM XT Model 5160 many months ago - a friend's dad was selling his house and offered those of us that did the hard labor the entirety of what we were excavating from the attic. This included some late 80s-early 00s Apple hardware, a couple of Fortune Systems 32:16 Unix machines, and my baby, the made-in-October-of-86 XT.
Sadly, the operating system refuses to load, and I have no software on 5.25" disks, so its useless for the time being. On the bright side, I found an AT to PS/2 adapter at a local computer store, so at the very least, I can plug the XT's 6-pound keyboard into my main computer.
And it works...beautifully. I challenge anyone to find me a modern deck that rocks as hard as the original IBM Model M. This thing is as old as I am, and I can guarantee it'll still be in working order long after I've ceased to exist. Also, the keys have a nice "clicky" feel to them.
Also also, I'm pretty sure I could beat a home invader to death with it, and immediately afterward write a post about how I just beat a guy to death with my keyboard.