I agree with everything you said.
"SHLD is unusual in that the insiders own a lot of stock"
Didn't know about that. With RadioShack I had fondness for the firm as an investor, long ago, and as a customer. My only feeling towards Sears was that it was the place where old poor people shopped, even long ago. Ok to buy a vacuum or wrench there, but little else. Certainly not clothing.
BTW, I'm curious how the surviving several hundred RadioShack units are doing under the new ownership. My guess: not great.
RSH had a niche, I'm not sure Sears does. And retailing just keeps declining.