Hi, Jim.
I exchanged a bit of email with the seller, and he
confirms it's all a joke. Seems like he's got a bet
going with a colleague over how long this ad will
last.
I don't think he expects anyone to take it seriously,
and he doesn't seem to be out to rip anyone off. I
did mention to him that there are serious collectors
of this kind of material, that sometimes really old
computers *do* turn up, so that it's not quite so
blindingly obvious a joke as he probably intended.
--Bill