I had paid and was on my way out of an estate sale through the garage. I hadn't bought much, prices were high. I had to take one more look and saw something on the bottom shelf covered in at least 1/2" of dust and sawdust. It was some old electronic equipment and I liked the way it looked so I bought it all for $4. Turns out the Healthkit W-5M amps go from $250-$600 each and the WA-P2 preamps maybe $75 each, untested. I am hoping to get $850 or so total. It has to be one of my best picks yet and I'm still fired up about it!