I can't vouchesafe John's decision to give up his treasured gear,
but I can say John's loss is my gain. John's 8566B is a beautiful
machine and several of us are having lots of fun with it. My tech
is making a new rack for it (and several other machines, together
far too big to fit on a bench), then I'll add an ethernet-to-GPIB
network connection, software, and it'll be ready for prime time.