Rogers High Fidelity Integrated amplifiers

I see used models listed for sale at a'gon and other audio sites quite often. However, whenever someone asks for opinions in the forums, the usual suspects are Primaluna, Rogue Audio, Raven Audio, Line Magnetic, Quicksilver, etc., but I hardly see anyone recommending Rogers. I wonder why that is. From what I understand, they're made in the US (I know, doesn't necessarily imply better quality) and the prices are quite reasonable.

The other thing I noticed was that unlike Primaluna or some other brands that get snapped up quickly, the Rogers amps tend to stay listed much longer.

What gives?