Why is it?

[zeno]

Maggies were a cabinet set. They had the nicest ones. When
shoppers came in the hubby wanted RCA or Zenith & wife
wanted Maggy. We were lucky not to have a Maggy dealer
near by. Maggies tended to have more problems & not quite
as servicable. So they got junked earlier. An RCA or Zenith
were easy to keep going & we had tons of parts for them.
Add to that market share, Maggy had much less than 10% IIRC.
Zeniths with its steel hand wired chassis could be nearly
immortal so they are seen most. RCA's kept going but heat
would take its toll.

73 Zeno