Just for shits n' giggles, I looked at more of their stuff and decided to peek at a Rockman device, I forget which one. Anyways, they're like back in 2014, one of the best features was the unit being refurbished. It was meticulously refurbished by (some guy's name who I forget) by carefully replacing all electrolytic capacitors, key solder joints were reflowed and all sliders/switches were cleaned with a multi chemical, multi step process. Soooooo....basically just maintenance on any piece of electronic equipment? I disassembled some old Atari 2600s when I did that on the side, meticulously replaced all electrolytic capacitors, the power jack, reflowed any suspect joints, and disassembled and deep cleaned the power/reset/color or b&w switch, difficulty switch, etc. Does that mean I can talk it up when I go to sell one and ask 3x what it's worth because I "meticulously" refurbished it? Oh, I also disassembled the paddle controllers and "rebuilt" the potentiometers by cleaning out 40 year old dirty grease and regreased them with fresh new lithium grease. I guess that makes them invaluable.