Clearly it wasn’t profitable enough anymore, and maybe wouldn’t be after moving overseas or something.
(There might not be buyers, the business might not be sustainable, the company space might be built into their home, they might have to sell commercial real estate for medical expenses or to get their estate in order, etc. Or maybe they're preoccupied with personal matters, and not up to investigating alternatives.)
I'd like to see DXE acquire the Hy-Gain and Ameritron lines if possible.
I've not followed this closely to know if Martin wanted to sell everything as a single unit or had entertained offers for the individual brands he's acquired over the years. Hopefully if it was the former he'll now consider the latter.