What items do you rarely ever see offered for sale

Electrocompaniet AW-75 75wpc 8ohm, 146wpc 4ohm, 280wpc? 2ohm and can dip to 1 ohm.
It idles at 60 ampules and peaks in the high 80's.
Drives my Thiel 3.5's with ease.
I have seen 3 for sale in the last 5 years.
2 on European eBay and 1 here on agon which I snatched up.
Duo mono-toroidal trannies and the high current make this sound like a Pass Aleph on steroids!

Cliffhanger Bulldog speakers.

Rockport turntables and Vendetta Research phono stages, for starters :-)

Brian

Audio Prism Mantissa preamp
Audio Innovations phono stages

Audio General pre
Electrocompaniet pre
Maggie Tympani
Dunlavy and Duntech speakers
Stax phones