Hi
*Many* years ago, I sold a full truck load of various HP distortion analyzers and audio generators. It took me three days of selling to move them all. I think I had to drop the price on the last of them to < $20 to get them moved after everybody had picked over the pile for days on end.
I would love to tell you that I saved a coupe for parts "just in case" and have some spare meters. Not so much ... I'm not ever sure the only one that I kept still works. Looking at the price of these on eBay, there is one up for auction at $49.99. *IF* it sells at that price, it's a much newer / cleaner one than any I had. It is priced just a bit above the $35 that I was selling them for in ... 1980. They are a good instrument.
My back still hurts thinking about that "adventure".
My current audio analyzer is a bit newer and fancier (HP 8903A). I paid *much* less for it than the $195 "buy it now" 333A that is next up in price.
A lot of this stuff gets dirt cheap when some guy named Bob is trying to dump the last of the truck load. If you shop long enough, you can find some amazing deals. You can't count your time as being worth anything of course, but hey, it's a hobby ...
Bob (with the aching back ...)