Earlier quoted context omitted.
Scale and ads are plausible explanations for why monitors are behind in tech, but they're still behind in tech.
I don't quite see how "TVs are cheaper because they earn money beyond the sale and have more economies in scale" translates to "monitors are behind in tech"? They have similar tech, but at different price points.
EDIT: Actually, I did specify that I was talking about consumer TVs. You didn't read my post, and then you decided to nitpick anyway. Bravo.