I went to an estate sale a few years ago and was looking for a way to provide 12V trigger for Niles muting volume controls and when I reached the room where the AV stuff had been installed, I liiked into the cabinet to see what was behind the main equipment- saw a Niles power triggered piece that has a 120V outlet, which I used for a wall wart.

New, that would have probably been the most expensive 12V trigger available without using something like a Lutron outlet and base, but that would have required user interface- they don't need to do anything for the Niles to do what I needed.

Lately, a lot of the sales I have gone to were run by people who DO look for values online and the prices reflect it, so I often go back near the end, when they offer better discounts.